Home / 138,248,744.40-207,373,116.60-123,468,123.60

Finding the Fourth Proportional to 138,248,744.40, 207,373,116.60 and 123,468,123.60

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Solution

The fourth proportional to 138,248,744.40, 207,373,116.60 and 123,468,123.60 is: 185,202,185.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,248,744.40 : 207,373,116.60 = 123,468,123.60 : x
  2. Step 2: Convert to fraction form
    138,248,744.40/207,373,116.60 = 123,468,123.60/x
  3. Step 3: Cross multiply
    138,248,744.40x = 207,373,116.60 × 123,468,123.60
  4. Step 4: Simplify right side
    138,248,744.40x = 25,603,969,591,686,008
  5. Step 5: Solve for x
    x = 25,603,969,591,686,008/138,248,744.40
  6. Step 6: Final answer
    x = 185,202,185.40

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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.