Home / 131,471,246.90-197,206,870.35-80,452,910.90

Finding the Fourth Proportional to 131,471,246.90, 197,206,870.35 and 80,452,910.90

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Solution

The fourth proportional to 131,471,246.90, 197,206,870.35 and 80,452,910.90 is: 120,679,366.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,471,246.90 : 197,206,870.35 = 80,452,910.90 : x
  2. Step 2: Convert to fraction form
    131,471,246.90/197,206,870.35 = 80,452,910.90/x
  3. Step 3: Cross multiply
    131,471,246.90x = 197,206,870.35 × 80,452,910.90
  4. Step 4: Simplify right side
    131,471,246.90x = 15,865,866,769,136,402
  5. Step 5: Solve for x
    x = 15,865,866,769,136,402/131,471,246.90
  6. Step 6: Final answer
    x = 120,679,366.35

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Similar ratio
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1.5x scale

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.