Home / 40,025,857.23-55,235,730.21-21,691,142.73

Finding the Fourth Proportional to 40,025,857.23, 55,235,730.21 and 21,691,142.73

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Solution

The fourth proportional to 40,025,857.23, 55,235,730.21 and 21,691,142.73 is: 29,933,802.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,025,857.23 : 55,235,730.21 = 21,691,142.73 : x
  2. Step 2: Convert to fraction form
    40,025,857.23/55,235,730.21 = 21,691,142.73/x
  3. Step 3: Cross multiply
    40,025,857.23x = 55,235,730.21 × 21,691,142.73
  4. Step 4: Simplify right side
    40,025,857.23x = 1,198,126,107,780,883
  5. Step 5: Solve for x
    x = 1,198,126,107,780,883/40,025,857.23
  6. Step 6: Final answer
    x = 29,933,802.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.