Home / 131,126,863.80-196,690,295.70-66,629,609.40

Finding the Fourth Proportional to 131,126,863.80, 196,690,295.70 and 66,629,609.40

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Solution

The fourth proportional to 131,126,863.80, 196,690,295.70 and 66,629,609.40 is: 99,944,414.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,126,863.80 : 196,690,295.70 = 66,629,609.40 : x
  2. Step 2: Convert to fraction form
    131,126,863.80/196,690,295.70 = 66,629,609.40/x
  3. Step 3: Cross multiply
    131,126,863.80x = 196,690,295.70 × 66,629,609.40
  4. Step 4: Simplify right side
    131,126,863.80x = 13,105,397,575,261,498
  5. Step 5: Solve for x
    x = 13,105,397,575,261,498/131,126,863.80
  6. Step 6: Final answer
    x = 99,944,414.10

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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.