Home / 18,730,138.80-28,063,715.40-15,517,873.20

Finding the Fourth Proportional to 18,730,138.80, 28,063,715.40 and 15,517,873.20

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Solution

The fourth proportional to 18,730,138.80, 28,063,715.40 and 15,517,873.20 is: 23,250,718.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730,138.80 : 28,063,715.40 = 15,517,873.20 : x
  2. Step 2: Convert to fraction form
    18,730,138.80/28,063,715.40 = 15,517,873.20/x
  3. Step 3: Cross multiply
    18,730,138.80x = 28,063,715.40 × 15,517,873.20
  4. Step 4: Simplify right side
    18,730,138.80x = 435,489,177,098,087.25
  5. Step 5: Solve for x
    x = 435,489,177,098,087.25/18,730,138.80
  6. Step 6: Final answer
    x = 23,250,718.09

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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.