Finding the Fourth Proportional to 391,172,689.80, 539,700,590.52 and 234,482,625.36
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Solution
The fourth proportional to 391,172,689.80, 539,700,590.52 and 234,482,625.36 is: 323,515,456.66
Step by Step Solution
- Step 1: Write the proportion equation
391,172,689.80 : 539,700,590.52 = 234,482,625.36 : x - Step 2: Convert to fraction form
391,172,689.80/539,700,590.52 = 234,482,625.36/x - Step 3: Cross multiply
391,172,689.80x = 539,700,590.52 × 234,482,625.36 - Step 4: Simplify right side
391,172,689.80x = 126,550,411,373,471,936 - Step 5: Solve for x
x = 126,550,411,373,471,936/391,172,689.80 - Step 6: Final answer
x = 323,515,456.66
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.