Wednesday

August 20, 2014

August 20, 2014

Posted by **John Berkhamp** on Tuesday, July 23, 2013 at 1:29pm.

- Algebra/Number Theory -
**Steve**, Tuesday, July 23, 2013 at 2:00pmThe numbers are

12, 12+d, 12+2d, 452

12, 12+d, (12+d)r, (12+d)r^2=452

(12+d)r^2 = 452

12+2d = (12+d)r

so,

r = (12+2d)/(12+d)

(12+d)((12+2d)/(12+d))^2 = 452

(12+2d)^2 = 452(12+d)

d = 112.71

r = 1.09377

The numbers are

12, 124.71, 237.42, 452

**Related Questions**

Maths - 1..The first 2 terms of a geometric progression are the same as the ...

math - There are two positive numbers that can be inserted between 3 and 9 such ...

Math (Geometric Progression) - 5 distinct positive reals form an arithmetic ...

Math - 5 distinct positive reals form an arithmetic progression. The 1st, 2nd ...

Algebra - Determine whether each sequence is arithmetic or geometric. Find the ...

math - Determine whether each sequence is arithmetic or geometric. Find the next...

math - Three numbers in an arithmetic sequence sum to six. If you add 1 to the ...

Math - A sequence is called an arithmetic progression of the rst order if the di...

maths - three number form an arithmetric sequence. Their sum is 24. A)If 'a' is ...

Geometric progression - The second term of a geometric progression is 12 more ...