Home / 221,542,396.70-332,327,766.20-85,227,780.20

Finding the Fourth Proportional to 221,542,396.70, 332,327,766.20 and 85,227,780.20

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Solution

The fourth proportional to 221,542,396.70, 332,327,766.20 and 85,227,780.20 is: 127,847,121.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,542,396.70 : 332,327,766.20 = 85,227,780.20 : x
  2. Step 2: Convert to fraction form
    221,542,396.70/332,327,766.20 = 85,227,780.20/x
  3. Step 3: Cross multiply
    221,542,396.70x = 332,327,766.20 × 85,227,780.20
  4. Step 4: Simplify right side
    221,542,396.70x = 28,323,557,809,962,808
  5. Step 5: Solve for x
    x = 28,323,557,809,962,808/221,542,396.70
  6. Step 6: Final answer
    x = 127,847,121.96

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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.