Home / 396,881,345.90-547,693,388.88-220,667,976.20

Finding the Fourth Proportional to 396,881,345.90, 547,693,388.88 and 220,667,976.20

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Solution

The fourth proportional to 396,881,345.90, 547,693,388.88 and 220,667,976.20 is: 304,520,212.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,881,345.90 : 547,693,388.88 = 220,667,976.20 : x
  2. Step 2: Convert to fraction form
    396,881,345.90/547,693,388.88 = 220,667,976.20/x
  3. Step 3: Cross multiply
    396,881,345.90x = 547,693,388.88 × 220,667,976.20
  4. Step 4: Simplify right side
    396,881,345.90x = 120,858,391,702,810,912
  5. Step 5: Solve for x
    x = 120,858,391,702,810,912/396,881,345.90
  6. Step 6: Final answer
    x = 304,520,212.28

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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.