Home / 18,792,043.20-28,188,064.80-15,957,691.20

Finding the Fourth Proportional to 18,792,043.20, 28,188,064.80 and 15,957,691.20

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Solution

The fourth proportional to 18,792,043.20, 28,188,064.80 and 15,957,691.20 is: 23,936,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792,043.20 : 28,188,064.80 = 15,957,691.20 : x
  2. Step 2: Convert to fraction form
    18,792,043.20/28,188,064.80 = 15,957,691.20/x
  3. Step 3: Cross multiply
    18,792,043.20x = 28,188,064.80 × 15,957,691.20
  4. Step 4: Simplify right side
    18,792,043.20x = 449,816,433,603,989.75
  5. Step 5: Solve for x
    x = 449,816,433,603,989.75/18,792,043.20
  6. Step 6: Final answer
    x = 23,936,536.80

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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.