Finding the Fourth Proportional to 381,609,202.20, 572,413,803.30 and 260,676,850.20
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Solution
The fourth proportional to 381,609,202.20, 572,413,803.30 and 260,676,850.20 is: 391,015,275.30
Step by Step Solution
- Step 1: Write the proportion equation
381,609,202.20 : 572,413,803.30 = 260,676,850.20 : x - Step 2: Convert to fraction form
381,609,202.20/572,413,803.30 = 260,676,850.20/x - Step 3: Cross multiply
381,609,202.20x = 572,413,803.30 × 260,676,850.20 - Step 4: Simplify right side
381,609,202.20x = 149,215,027,255,246,336 - Step 5: Solve for x
x = 149,215,027,255,246,336/381,609,202.20 - Step 6: Final answer
x = 391,015,275.30
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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.