Finding the Fourth Proportional to 156,980,615.62, 216,633,250.12 and 87,382,438
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Solution
The fourth proportional to 156,980,615.62, 216,633,250.12 and 87,382,438 is: 120,587,764.75
Step by Step Solution
- Step 1: Write the proportion equation
156,980,615.62 : 216,633,250.12 = 87,382,438 : x - Step 2: Convert to fraction form
156,980,615.62/216,633,250.12 = 87,382,438/x - Step 3: Cross multiply
156,980,615.62x = 216,633,250.12 × 87,382,438 - Step 4: Simplify right side
156,980,615.62x = 18,929,941,547,349,392 - Step 5: Solve for x
x = 18,929,941,547,349,392/156,980,615.62 - Step 6: Final answer
x = 120,587,764.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.