Home / 40,025,861.98-55,235,736.78-21,691,147.48

Finding the Fourth Proportional to 40,025,861.98, 55,235,736.78 and 21,691,147.48

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Solution

The fourth proportional to 40,025,861.98, 55,235,736.78 and 21,691,147.48 is: 29,933,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,025,861.98 : 55,235,736.78 = 21,691,147.48 : x
  2. Step 2: Convert to fraction form
    40,025,861.98/55,235,736.78 = 21,691,147.48/x
  3. Step 3: Cross multiply
    40,025,861.98x = 55,235,736.78 × 21,691,147.48
  4. Step 4: Simplify right side
    40,025,861.98x = 1,198,126,512,661,440.25
  5. Step 5: Solve for x
    x = 1,198,126,512,661,440.25/40,025,861.98
  6. Step 6: Final answer
    x = 29,933,809.13

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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.