Home / 396,278,368.20-594,417,552.30-212,612,358.60

Finding the Fourth Proportional to 396,278,368.20, 594,417,552.30 and 212,612,358.60

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Solution

The fourth proportional to 396,278,368.20, 594,417,552.30 and 212,612,358.60 is: 318,918,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,278,368.20 : 594,417,552.30 = 212,612,358.60 : x
  2. Step 2: Convert to fraction form
    396,278,368.20/594,417,552.30 = 212,612,358.60/x
  3. Step 3: Cross multiply
    396,278,368.20x = 594,417,552.30 × 212,612,358.60
  4. Step 4: Simplify right side
    396,278,368.20x = 126,380,517,787,741,840
  5. Step 5: Solve for x
    x = 126,380,517,787,741,840/396,278,368.20
  6. Step 6: Final answer
    x = 318,918,537.90

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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.