Finding the Fourth Proportional to 663,655,110.48, 915,588,618.12 and 415,704,805.20
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Solution
The fourth proportional to 663,655,110.48, 915,588,618.12 and 415,704,805.20 is: 573,512,630.47
Step by Step Solution
- Step 1: Write the proportion equation
663,655,110.48 : 915,588,618.12 = 415,704,805.20 : x - Step 2: Convert to fraction form
663,655,110.48/915,588,618.12 = 415,704,805.20/x - Step 3: Cross multiply
663,655,110.48x = 915,588,618.12 × 415,704,805.20 - Step 4: Simplify right side
663,655,110.48x = 380,614,588,138,911,808 - Step 5: Solve for x
x = 380,614,588,138,911,808/663,655,110.48 - Step 6: Final answer
x = 573,512,630.47
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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.