Home / 281,521,753.62-422,281,785.66-71,432,032.80

Finding the Fourth Proportional to 281,521,753.62, 422,281,785.66 and 71,432,032.80

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Solution

The fourth proportional to 281,521,753.62, 422,281,785.66 and 71,432,032.80 is: 107,147,834.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,521,753.62 : 422,281,785.66 = 71,432,032.80 : x
  2. Step 2: Convert to fraction form
    281,521,753.62/422,281,785.66 = 71,432,032.80/x
  3. Step 3: Cross multiply
    281,521,753.62x = 422,281,785.66 × 71,432,032.80
  4. Step 4: Simplify right side
    281,521,753.62x = 30,164,446,364,107,692
  5. Step 5: Solve for x
    x = 30,164,446,364,107,692/281,521,753.62
  6. Step 6: Final answer
    x = 107,147,834.85

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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.