Home / 396,388,779-594,589,148.14-137,612,220.88

Finding the Fourth Proportional to 396,388,779, 594,589,148.14 and 137,612,220.88

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Solution

The fourth proportional to 396,388,779, 594,589,148.14 and 137,612,220.88 is: 206,420,407.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,388,779 : 594,589,148.14 = 137,612,220.88 : x
  2. Step 2: Convert to fraction form
    396,388,779/594,589,148.14 = 137,612,220.88/x
  3. Step 3: Cross multiply
    396,388,779x = 594,589,148.14 × 137,612,220.88
  4. Step 4: Simplify right side
    396,388,779x = 81,822,733,186,692,720
  5. Step 5: Solve for x
    x = 81,822,733,186,692,720/396,388,779
  6. Step 6: Final answer
    x = 206,420,407.24

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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.