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January 30, 2015

January 30, 2015

Posted by **Sandi** on Monday, November 15, 2010 at 1:18pm.

This is how I filled the TVM Solver on my TI83plus. However I was told it is wrong. I also figured it out using the formula A=P(1+I)^n so A= 400(1+0.03)^50 =$1753.56 As you can see I have different results and I'm extremely confused. What am I doing wrong in filling in the TVM Solver

N=50

I%=6

PV=0

PMT=-400

FV=?answer I got 22622.76185

P/Y=12

C/Y=2

PMT:END BEGIN

- math 20 (finance)Please help -
**Reiny**, Monday, November 15, 2010 at 2:06pmNot familiar with the way the calculator is set up to do this, but the problem here is that the payments are monthly and the rate is compounded semiannually

So the old-fashioned way is to find the equivalent monthly rate

let the monthly rate be i

(1+i)^12 = (1.03)^2

1+i = 1.03^(1/6) = 1.0049386

so i = .0049386

n = 12*25 = 300

payment = 400

Using the standard formula for the "amount of an annuity"

amount = 400 [ 1.0049386^300 - 1 ]/.0049386

= 270 076.94

What you found was the value of the first payment of $400 twenty five years from now

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