Finding the Fourth Proportional to 391,397,204.80, 539,684,385.28 and 250,081,726.08
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Solution
The fourth proportional to 391,397,204.80, 539,684,385.28 and 250,081,726.08 is: 344,829,244.96
Step by Step Solution
- Step 1: Write the proportion equation
391,397,204.80 : 539,684,385.28 = 250,081,726.08 : x - Step 2: Convert to fraction form
391,397,204.80/539,684,385.28 = 250,081,726.08/x - Step 3: Cross multiply
391,397,204.80x = 539,684,385.28 × 250,081,726.08 - Step 4: Simplify right side
391,397,204.80x = 134,965,202,609,246,144 - Step 5: Solve for x
x = 134,965,202,609,246,144/391,397,204.80 - Step 6: Final answer
x = 344,829,244.96
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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.