Home / 442,904,338.20-664,353,008.10-115,379,218.20

Finding the Fourth Proportional to 442,904,338.20, 664,353,008.10 and 115,379,218.20

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Solution

The fourth proportional to 442,904,338.20, 664,353,008.10 and 115,379,218.20 is: 173,067,915.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,904,338.20 : 664,353,008.10 = 115,379,218.20 : x
  2. Step 2: Convert to fraction form
    442,904,338.20/664,353,008.10 = 115,379,218.20/x
  3. Step 3: Cross multiply
    442,904,338.20x = 664,353,008.10 × 115,379,218.20
  4. Step 4: Simplify right side
    442,904,338.20x = 76,652,530,683,396,272
  5. Step 5: Solve for x
    x = 76,652,530,683,396,272/442,904,338.20
  6. Step 6: Final answer
    x = 173,067,915.74

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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.