Home / 664,288,793.10-996,433,189.65-387,656,037.90

Finding the Fourth Proportional to 664,288,793.10, 996,433,189.65 and 387,656,037.90

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Solution

The fourth proportional to 664,288,793.10, 996,433,189.65 and 387,656,037.90 is: 581,484,056.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,288,793.10 : 996,433,189.65 = 387,656,037.90 : x
  2. Step 2: Convert to fraction form
    664,288,793.10/996,433,189.65 = 387,656,037.90/x
  3. Step 3: Cross multiply
    664,288,793.10x = 996,433,189.65 × 387,656,037.90
  4. Step 4: Simplify right side
    664,288,793.10x = 386,273,342,331,778,240
  5. Step 5: Solve for x
    x = 386,273,342,331,778,240/664,288,793.10
  6. Step 6: Final answer
    x = 581,484,056.85

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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.