Home / 138,417,865.38-207,647,440.52-50,972,657.31

Finding the Fourth Proportional to 138,417,865.38, 207,647,440.52 and 50,972,657.31

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Solution

The fourth proportional to 138,417,865.38, 207,647,440.52 and 50,972,657.31 is: 76,466,587.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,417,865.38 : 207,647,440.52 = 50,972,657.31 : x
  2. Step 2: Convert to fraction form
    138,417,865.38/207,647,440.52 = 50,972,657.31/x
  3. Step 3: Cross multiply
    138,417,865.38x = 207,647,440.52 × 50,972,657.31
  4. Step 4: Simplify right side
    138,417,865.38x = 10,584,341,826,669,704
  5. Step 5: Solve for x
    x = 10,584,341,826,669,704/138,417,865.38
  6. Step 6: Final answer
    x = 76,466,587.59

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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.