Home / 649,542,266.70-974,313,400.05-442,918,005.90

Finding the Fourth Proportional to 649,542,266.70, 974,313,400.05 and 442,918,005.90

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Solution

The fourth proportional to 649,542,266.70, 974,313,400.05 and 442,918,005.90 is: 664,377,008.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,542,266.70 : 974,313,400.05 = 442,918,005.90 : x
  2. Step 2: Convert to fraction form
    649,542,266.70/974,313,400.05 = 442,918,005.90/x
  3. Step 3: Cross multiply
    649,542,266.70x = 974,313,400.05 × 442,918,005.90
  4. Step 4: Simplify right side
    649,542,266.70x = 431,540,948,271,794,944
  5. Step 5: Solve for x
    x = 431,540,948,271,794,944/649,542,266.70
  6. Step 6: Final answer
    x = 664,377,008.85

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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.