Home / 131,126,861.80-196,690,292.70-66,629,607.40

Finding the Fourth Proportional to 131,126,861.80, 196,690,292.70 and 66,629,607.40

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Solution

The fourth proportional to 131,126,861.80, 196,690,292.70 and 66,629,607.40 is: 99,944,411.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,126,861.80 : 196,690,292.70 = 66,629,607.40 : x
  2. Step 2: Convert to fraction form
    131,126,861.80/196,690,292.70 = 66,629,607.40/x
  3. Step 3: Cross multiply
    131,126,861.80x = 196,690,292.70 × 66,629,607.40
  4. Step 4: Simplify right side
    131,126,861.80x = 13,105,396,981,992,084
  5. Step 5: Solve for x
    x = 13,105,396,981,992,084/131,126,861.80
  6. Step 6: Final answer
    x = 99,944,411.10

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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.