Finding the Fourth Proportional to 257,519,246.10, 386,278,869.15 and 247,475,011.20
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Solution
The fourth proportional to 257,519,246.10, 386,278,869.15 and 247,475,011.20 is: 371,212,516.80
Step by Step Solution
- Step 1: Write the proportion equation
257,519,246.10 : 386,278,869.15 = 247,475,011.20 : x - Step 2: Convert to fraction form
257,519,246.10/386,278,869.15 = 247,475,011.20/x - Step 3: Cross multiply
257,519,246.10x = 386,278,869.15 × 247,475,011.20 - Step 4: Simplify right side
257,519,246.10x = 95,594,367,469,219,568 - Step 5: Solve for x
x = 95,594,367,469,219,568/257,519,246.10 - Step 6: Final answer
x = 371,212,516.80
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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.