Home / 138,248,743.40-207,373,115.10-123,468,122.60

Finding the Fourth Proportional to 138,248,743.40, 207,373,115.10 and 123,468,122.60

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Solution

The fourth proportional to 138,248,743.40, 207,373,115.10 and 123,468,122.60 is: 185,202,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,248,743.40 : 207,373,115.10 = 123,468,122.60 : x
  2. Step 2: Convert to fraction form
    138,248,743.40/207,373,115.10 = 123,468,122.60/x
  3. Step 3: Cross multiply
    138,248,743.40x = 207,373,115.10 × 123,468,122.60
  4. Step 4: Simplify right side
    138,248,743.40x = 25,603,969,199,110,708
  5. Step 5: Solve for x
    x = 25,603,969,199,110,708/138,248,743.40
  6. Step 6: Final answer
    x = 185,202,183.90

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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.