Home / 28,615,687.80-42,923,791.19-8,145,399.33

Finding the Fourth Proportional to 28,615,687.80, 42,923,791.19 and 8,145,399.33

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Solution

The fourth proportional to 28,615,687.80, 42,923,791.19 and 8,145,399.33 is: 12,218,172.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615,687.80 : 42,923,791.19 = 8,145,399.33 : x
  2. Step 2: Convert to fraction form
    28,615,687.80/42,923,791.19 = 8,145,399.33/x
  3. Step 3: Cross multiply
    28,615,687.80x = 42,923,791.19 × 8,145,399.33
  4. Step 4: Simplify right side
    28,615,687.80x = 349,631,419,959,358.94
  5. Step 5: Solve for x
    x = 349,631,419,959,358.94/28,615,687.80
  6. Step 6: Final answer
    x = 12,218,172.86

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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.