Home / 138,102,286.70-207,244,922.87-75,897,042.38

Finding the Fourth Proportional to 138,102,286.70, 207,244,922.87 and 75,897,042.38

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Solution

The fourth proportional to 138,102,286.70, 207,244,922.87 and 75,897,042.38 is: 113,895,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,102,286.70 : 207,244,922.87 = 75,897,042.38 : x
  2. Step 2: Convert to fraction form
    138,102,286.70/207,244,922.87 = 75,897,042.38/x
  3. Step 3: Cross multiply
    138,102,286.70x = 207,244,922.87 × 75,897,042.38
  4. Step 4: Simplify right side
    138,102,286.70x = 15,729,276,694,812,074
  5. Step 5: Solve for x
    x = 15,729,276,694,812,074/138,102,286.70
  6. Step 6: Final answer
    x = 113,895,845.40

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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.