Home / 396,290,435.20-594,435,652.80-137,419,619.20

Finding the Fourth Proportional to 396,290,435.20, 594,435,652.80 and 137,419,619.20

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Solution

The fourth proportional to 396,290,435.20, 594,435,652.80 and 137,419,619.20 is: 206,129,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,290,435.20 : 594,435,652.80 = 137,419,619.20 : x
  2. Step 2: Convert to fraction form
    396,290,435.20/594,435,652.80 = 137,419,619.20/x
  3. Step 3: Cross multiply
    396,290,435.20x = 594,435,652.80 × 137,419,619.20
  4. Step 4: Simplify right side
    396,290,435.20x = 81,687,121,046,679,408
  5. Step 5: Solve for x
    x = 81,687,121,046,679,408/396,290,435.20
  6. Step 6: Final answer
    x = 206,129,428.80

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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.