How Do You Calculate the Nominal Interest Rate Compounded Differently?

  • Thread starter Thread starter aisha
  • Start date Start date
  • Tags Tags
    Interest Rate
AI Thread Summary
To calculate the nominal interest rate equivalent to 18% per annum compounded quarterly when interest is paid monthly, use the formula (1 + 18%/4)^4 = (1 + i/12)^12. Solving for i involves finding the 12th root of the left side and then subtracting 1, resulting in i = 0.001478 or 1.478%. Multiplying this by 12 gives a nominal rate of 17.736% per annum compounded monthly. This calculation confirms that 17.736% per annum compounded monthly is equivalent to 18% per annum compounded quarterly.
aisha
Messages
584
Reaction score
0
:rolleyes: how do u do this ? Find the nominal interest rate that is equivalent to 18%/a compounded quarterly, if interest is paid monthly?

WOh confusing What do u do?
 
Physics news on Phys.org
I'm not really sure if your given is 18%/a convertible quarterly or 18% convertible quarterly, however, i can try to help you in both;

The formula used here should be

<br /> (1 + \frac{i^{(4)}}{4})^4 = (1 + \frac{i^{(12)}}{12})^{12}<br />

Whatever it is, you are given i^{(4)}. Solve for i^{(12)}
 
Does this make sense I did all the calculations following an example problem its a little hard to write it out here but I wrote

P(1+0.18/4)^4=P(1+i)^12

and solved for i finding the 12th root of the left side and then subtracting 1

i=0.001478 or 1.478% then to get the nominal rate I multiplied this by 12

so 12*1.478% and got = 17.736%

Therefore 17.736%/a compounded monthly is equivalent to 18%/a compounded quarterly.

IS THIS CORRECT?
 
ANYONE KNOW IF MY PREVIOUS POSTS ANSWER IS CORRECT ANYONE? :rolleyes:
 
aisha said:
ANYONE KNOW IF MY PREVIOUS POSTS ANSWER IS CORRECT ANYONE? :rolleyes:

Hi there:

Read this lecture and you'll know the answer by yourself:

[PPT]Nominal and Effective Interest rates

(Write it on any search engine and then download the link - Good luck.

Feel free to send back if you cannot get it.
 
gmohamed said:
Hi there:

To complete my answer after viewing the lecture I sent you with other references, yes, your answer is correct.

The formula you need to use here is as follows:

(1 + 18%/4)^4 = (1 + i/12)^12

Only i is unknown and you need to figure it out as follows:
Just do simple math, and re-write terms, then, you will find the following answer:

i = 0.1773655395684

You can also reach to the same answer by simply using the equivalent interest rate calculator.

Good luck :)
 
Last edited:
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Thread 'A cylinder connected to a hanging mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top