Home / 396,290,445.20-594,435,667.80-137,419,629.20

Finding the Fourth Proportional to 396,290,445.20, 594,435,667.80 and 137,419,629.20

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Solution

The fourth proportional to 396,290,445.20, 594,435,667.80 and 137,419,629.20 is: 206,129,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,290,445.20 : 594,435,667.80 = 137,419,629.20 : x
  2. Step 2: Convert to fraction form
    396,290,445.20/594,435,667.80 = 137,419,629.20/x
  3. Step 3: Cross multiply
    396,290,445.20x = 594,435,667.80 × 137,419,629.20
  4. Step 4: Simplify right side
    396,290,445.20x = 81,687,129,052,330,368
  5. Step 5: Solve for x
    x = 81,687,129,052,330,368/396,290,445.20
  6. Step 6: Final answer
    x = 206,129,443.80

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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.