Home / 86,206,707,987.40-129,310,061,981.10-71,694,825,747.40

Finding the Fourth Proportional to 86,206,707,987.40, 129,310,061,981.10 and 71,694,825,747.40

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Solution

The fourth proportional to 86,206,707,987.40, 129,310,061,981.10 and 71,694,825,747.40 is: 107,542,238,621.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,206,707,987.40 : 129,310,061,981.10 = 71,694,825,747.40 : x
  2. Step 2: Convert to fraction form
    86,206,707,987.40/129,310,061,981.10 = 71,694,825,747.40/x
  3. Step 3: Cross multiply
    86,206,707,987.40x = 129,310,061,981.10 × 71,694,825,747.40
  4. Step 4: Simplify right side
    86,206,707,987.40x = 9,270,862,361,120,457,359,360
  5. Step 5: Solve for x
    x = 9,270,862,361,120,457,359,360/86,206,707,987.40
  6. Step 6: Final answer
    x = 107,542,238,621.10

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Double scale
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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.