Home / 398,412,000.30-597,618,000.45-125,747,337.90

Finding the Fourth Proportional to 398,412,000.30, 597,618,000.45 and 125,747,337.90

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Solution

The fourth proportional to 398,412,000.30, 597,618,000.45 and 125,747,337.90 is: 188,621,006.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,412,000.30 : 597,618,000.45 = 125,747,337.90 : x
  2. Step 2: Convert to fraction form
    398,412,000.30/597,618,000.45 = 125,747,337.90/x
  3. Step 3: Cross multiply
    398,412,000.30x = 597,618,000.45 × 125,747,337.90
  4. Step 4: Simplify right side
    398,412,000.30x = 75,148,872,637,708,512
  5. Step 5: Solve for x
    x = 75,148,872,637,708,512/398,412,000.30
  6. Step 6: Final answer
    x = 188,621,006.85

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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.