Finding the Fourth Proportional to 3,917,691.52, 5,406,414.36 and 2,198,812.08
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Solution
The fourth proportional to 3,917,691.52, 5,406,414.36 and 2,198,812.08 is: 3,034,360.71
Step by Step Solution
- Step 1: Write the proportion equation
3,917,691.52 : 5,406,414.36 = 2,198,812.08 : x - Step 2: Convert to fraction form
3,917,691.52/5,406,414.36 = 2,198,812.08/x - Step 3: Cross multiply
3,917,691.52x = 5,406,414.36 × 2,198,812.08 - Step 4: Simplify right side
3,917,691.52x = 11,887,689,204,253.47 - Step 5: Solve for x
x = 11,887,689,204,253.47/3,917,691.52 - Step 6: Final answer
x = 3,034,360.71
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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.