Finding the Fourth Proportional to 487,951,378.92, 731,935,815.90 and 177,279,631.08
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Solution
The fourth proportional to 487,951,378.92, 731,935,815.90 and 177,279,631.08 is: 265,922,624.72
Step by Step Solution
- Step 1: Write the proportion equation
487,951,378.92 : 731,935,815.90 = 177,279,631.08 : x - Step 2: Convert to fraction form
487,951,378.92/731,935,815.90 = 177,279,631.08/x - Step 3: Cross multiply
487,951,378.92x = 731,935,815.90 × 177,279,631.08 - Step 4: Simplify right side
487,951,378.92x = 129,757,311,416,990,800 - Step 5: Solve for x
x = 129,757,311,416,990,800/487,951,378.92 - Step 6: Final answer
x = 265,922,624.72
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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.