Finding the Fourth Proportional to 82,720,601.20, 124,080,901.80 and 22,136,327.20
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Solution
The fourth proportional to 82,720,601.20, 124,080,901.80 and 22,136,327.20 is: 33,204,490.80
Step by Step Solution
- Step 1: Write the proportion equation
82,720,601.20 : 124,080,901.80 = 22,136,327.20 : x - Step 2: Convert to fraction form
82,720,601.20/124,080,901.80 = 22,136,327.20/x - Step 3: Cross multiply
82,720,601.20x = 124,080,901.80 × 22,136,327.20 - Step 4: Simplify right side
82,720,601.20x = 2,746,695,441,515,869 - Step 5: Solve for x
x = 2,746,695,441,515,869/82,720,601.20 - Step 6: Final answer
x = 33,204,490.80
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.