Home / 664,288,229.70-996,432,344.55-255,357,720.90

Finding the Fourth Proportional to 664,288,229.70, 996,432,344.55 and 255,357,720.90

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Solution

The fourth proportional to 664,288,229.70, 996,432,344.55 and 255,357,720.90 is: 383,036,581.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,288,229.70 : 996,432,344.55 = 255,357,720.90 : x
  2. Step 2: Convert to fraction form
    664,288,229.70/996,432,344.55 = 255,357,720.90/x
  3. Step 3: Cross multiply
    664,288,229.70x = 996,432,344.55 × 255,357,720.90
  4. Step 4: Simplify right side
    664,288,229.70x = 254,446,692,535,331,520
  5. Step 5: Solve for x
    x = 254,446,692,535,331,520/664,288,229.70
  6. Step 6: Final answer
    x = 383,036,581.35

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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.