Home / 138,023,999.70-207,035,999.55-42,273,446.10

Finding the Fourth Proportional to 138,023,999.70, 207,035,999.55 and 42,273,446.10

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Solution

The fourth proportional to 138,023,999.70, 207,035,999.55 and 42,273,446.10 is: 63,410,169.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,023,999.70 : 207,035,999.55 = 42,273,446.10 : x
  2. Step 2: Convert to fraction form
    138,023,999.70/207,035,999.55 = 42,273,446.10/x
  3. Step 3: Cross multiply
    138,023,999.70x = 207,035,999.55 × 42,273,446.10
  4. Step 4: Simplify right side
    138,023,999.70x = 8,752,125,167,736,550
  5. Step 5: Solve for x
    x = 8,752,125,167,736,550/138,023,999.70
  6. Step 6: Final answer
    x = 63,410,169.15

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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.