Home / 131,471,215.90-197,206,823.85-80,452,879.90

Finding the Fourth Proportional to 131,471,215.90, 197,206,823.85 and 80,452,879.90

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Solution

The fourth proportional to 131,471,215.90, 197,206,823.85 and 80,452,879.90 is: 120,679,319.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,471,215.90 : 197,206,823.85 = 80,452,879.90 : x
  2. Step 2: Convert to fraction form
    131,471,215.90/197,206,823.85 = 80,452,879.90/x
  3. Step 3: Cross multiply
    131,471,215.90x = 197,206,823.85 × 80,452,879.90
  4. Step 4: Simplify right side
    131,471,215.90x = 15,865,856,914,664,506
  5. Step 5: Solve for x
    x = 15,865,856,914,664,506/131,471,215.90
  6. Step 6: Final answer
    x = 120,679,319.85

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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.