Home / 629,856,679.60-944,785,019.40-323,179,793.20

Finding the Fourth Proportional to 629,856,679.60, 944,785,019.40 and 323,179,793.20

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Solution

The fourth proportional to 629,856,679.60, 944,785,019.40 and 323,179,793.20 is: 484,769,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,856,679.60 : 944,785,019.40 = 323,179,793.20 : x
  2. Step 2: Convert to fraction form
    629,856,679.60/944,785,019.40 = 323,179,793.20/x
  3. Step 3: Cross multiply
    629,856,679.60x = 944,785,019.40 × 323,179,793.20
  4. Step 4: Simplify right side
    629,856,679.60x = 305,335,427,188,149,952
  5. Step 5: Solve for x
    x = 305,335,427,188,149,952/629,856,679.60
  6. Step 6: Final answer
    x = 484,769,689.80

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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.