Home / 86,215,512.80-129,323,269.20-76,862,151.20

Finding the Fourth Proportional to 86,215,512.80, 129,323,269.20 and 76,862,151.20

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Solution

The fourth proportional to 86,215,512.80, 129,323,269.20 and 76,862,151.20 is: 115,293,226.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,215,512.80 : 129,323,269.20 = 76,862,151.20 : x
  2. Step 2: Convert to fraction form
    86,215,512.80/129,323,269.20 = 76,862,151.20/x
  3. Step 3: Cross multiply
    86,215,512.80x = 129,323,269.20 × 76,862,151.20
  4. Step 4: Simplify right side
    86,215,512.80x = 9,940,064,670,928,704
  5. Step 5: Solve for x
    x = 9,940,064,670,928,704/86,215,512.80
  6. Step 6: Final answer
    x = 115,293,226.80

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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.