Home / 18,722,791.20-28,084,186.80-15,895,437.60

Finding the Fourth Proportional to 18,722,791.20, 28,084,186.80 and 15,895,437.60

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Solution

The fourth proportional to 18,722,791.20, 28,084,186.80 and 15,895,437.60 is: 23,843,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,791.20 : 28,084,186.80 = 15,895,437.60 : x
  2. Step 2: Convert to fraction form
    18,722,791.20/28,084,186.80 = 15,895,437.60/x
  3. Step 3: Cross multiply
    18,722,791.20x = 28,084,186.80 × 15,895,437.60
  4. Step 4: Simplify right side
    18,722,791.20x = 446,410,438,826,143.69
  5. Step 5: Solve for x
    x = 446,410,438,826,143.69/18,722,791.20
  6. Step 6: Final answer
    x = 23,843,156.40

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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.