Home / 131,471,211.90-197,206,817.85-80,452,875.90

Finding the Fourth Proportional to 131,471,211.90, 197,206,817.85 and 80,452,875.90

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Solution

The fourth proportional to 131,471,211.90, 197,206,817.85 and 80,452,875.90 is: 120,679,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,471,211.90 : 197,206,817.85 = 80,452,875.90 : x
  2. Step 2: Convert to fraction form
    131,471,211.90/197,206,817.85 = 80,452,875.90/x
  3. Step 3: Cross multiply
    131,471,211.90x = 197,206,817.85 × 80,452,875.90
  4. Step 4: Simplify right side
    131,471,211.90x = 15,865,855,643,119,956
  5. Step 5: Solve for x
    x = 15,865,855,643,119,956/131,471,211.90
  6. Step 6: Final answer
    x = 120,679,313.85

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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.