Home / 221,228,489.40-331,842,734.10-67,874,299.80

Finding the Fourth Proportional to 221,228,489.40, 331,842,734.10 and 67,874,299.80

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Solution

The fourth proportional to 221,228,489.40, 331,842,734.10 and 67,874,299.80 is: 101,811,449.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,228,489.40 : 331,842,734.10 = 67,874,299.80 : x
  2. Step 2: Convert to fraction form
    221,228,489.40/331,842,734.10 = 67,874,299.80/x
  3. Step 3: Cross multiply
    221,228,489.40x = 331,842,734.10 × 67,874,299.80
  4. Step 4: Simplify right side
    221,228,489.40x = 22,523,593,220,755,084
  5. Step 5: Solve for x
    x = 22,523,593,220,755,084/221,228,489.40
  6. Step 6: Final answer
    x = 101,811,449.70

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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.