Home / 499,947,720.38-749,648,200.10-396,978,369.44

Finding the Fourth Proportional to 499,947,720.38, 749,648,200.10 and 396,978,369.44

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Solution

The fourth proportional to 499,947,720.38, 749,648,200.10 and 396,978,369.44 is: 595,250,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,947,720.38 : 749,648,200.10 = 396,978,369.44 : x
  2. Step 2: Convert to fraction form
    499,947,720.38/749,648,200.10 = 396,978,369.44/x
  3. Step 3: Cross multiply
    499,947,720.38x = 749,648,200.10 × 396,978,369.44
  4. Step 4: Simplify right side
    499,947,720.38x = 297,594,120,129,328,832
  5. Step 5: Solve for x
    x = 297,594,120,129,328,832/499,947,720.38
  6. Step 6: Final answer
    x = 595,250,479.20

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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.