Home / 396,854,648.78-595,243,481.96-120,508,255.71

Finding the Fourth Proportional to 396,854,648.78, 595,243,481.96 and 120,508,255.71

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Solution

The fourth proportional to 396,854,648.78, 595,243,481.96 and 120,508,255.71 is: 180,750,695.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,854,648.78 : 595,243,481.96 = 120,508,255.71 : x
  2. Step 2: Convert to fraction form
    396,854,648.78/595,243,481.96 = 120,508,255.71/x
  3. Step 3: Cross multiply
    396,854,648.78x = 595,243,481.96 × 120,508,255.71
  4. Step 4: Simplify right side
    396,854,648.78x = 71,731,753,734,047,712
  5. Step 5: Solve for x
    x = 71,731,753,734,047,712/396,854,648.78
  6. Step 6: Final answer
    x = 180,750,695.39

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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.