Home / 396,881,359.92-547,693,408.20-220,667,990.22

Finding the Fourth Proportional to 396,881,359.92, 547,693,408.20 and 220,667,990.22

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Solution

The fourth proportional to 396,881,359.92, 547,693,408.20 and 220,667,990.22 is: 304,520,231.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,881,359.92 : 547,693,408.20 = 220,667,990.22 : x
  2. Step 2: Convert to fraction form
    396,881,359.92/547,693,408.20 = 220,667,990.22/x
  3. Step 3: Cross multiply
    396,881,359.92x = 547,693,408.20 × 220,667,990.22
  4. Step 4: Simplify right side
    396,881,359.92x = 120,858,403,644,236,080
  5. Step 5: Solve for x
    x = 120,858,403,644,236,080/396,881,359.92
  6. Step 6: Final answer
    x = 304,520,231.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.