Finding the Fourth Proportional to 381,657,863.70, 572,486,795.55 and 260,725,511.70
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Solution
The fourth proportional to 381,657,863.70, 572,486,795.55 and 260,725,511.70 is: 391,088,267.55
Step by Step Solution
- Step 1: Write the proportion equation
381,657,863.70 : 572,486,795.55 = 260,725,511.70 : x - Step 2: Convert to fraction form
381,657,863.70/572,486,795.55 = 260,725,511.70/x - Step 3: Cross multiply
381,657,863.70x = 572,486,795.55 × 260,725,511.70 - Step 4: Simplify right side
381,657,863.70x = 149,261,912,711,267,008 - Step 5: Solve for x
x = 149,261,912,711,267,008/381,657,863.70 - Step 6: Final answer
x = 391,088,267.55
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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.