Home / 15,203,691.14-20,981,432.56-8,677,189.69

Finding the Fourth Proportional to 15,203,691.14, 20,981,432.56 and 8,677,189.69

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Solution

The fourth proportional to 15,203,691.14, 20,981,432.56 and 8,677,189.69 is: 11,974,715.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,203,691.14 : 20,981,432.56 = 8,677,189.69 : x
  2. Step 2: Convert to fraction form
    15,203,691.14/20,981,432.56 = 8,677,189.69/x
  3. Step 3: Cross multiply
    15,203,691.14x = 20,981,432.56 × 8,677,189.69
  4. Step 4: Simplify right side
    15,203,691.14x = 182,059,870,312,755.28
  5. Step 5: Solve for x
    x = 182,059,870,312,755.28/15,203,691.14
  6. Step 6: Final answer
    x = 11,974,715.13

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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.