Home / 86,626,873.11-129,940,531.20-21,930,685.10

Finding the Fourth Proportional to 86,626,873.11, 129,940,531.20 and 21,930,685.10

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Solution

The fourth proportional to 86,626,873.11, 129,940,531.20 and 21,930,685.10 is: 32,896,083.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,626,873.11 : 129,940,531.20 = 21,930,685.10 : x
  2. Step 2: Convert to fraction form
    86,626,873.11/129,940,531.20 = 21,930,685.10/x
  3. Step 3: Cross multiply
    86,626,873.11x = 129,940,531.20 × 21,930,685.10
  4. Step 4: Simplify right side
    86,626,873.11x = 2,849,684,870,824,222.50
  5. Step 5: Solve for x
    x = 2,849,684,870,824,222.50/86,626,873.11
  6. Step 6: Final answer
    x = 32,896,083.73

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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.