Home / 40,025,861.86-55,235,736.59-21,691,147.36

Finding the Fourth Proportional to 40,025,861.86, 55,235,736.59 and 21,691,147.36

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Solution

The fourth proportional to 40,025,861.86, 55,235,736.59 and 21,691,147.36 is: 29,933,808.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,025,861.86 : 55,235,736.59 = 21,691,147.36 : x
  2. Step 2: Convert to fraction form
    40,025,861.86/55,235,736.59 = 21,691,147.36/x
  3. Step 3: Cross multiply
    40,025,861.86x = 55,235,736.59 × 21,691,147.36
  4. Step 4: Simplify right side
    40,025,861.86x = 1,198,126,501,911,834
  5. Step 5: Solve for x
    x = 1,198,126,501,911,834/40,025,861.86
  6. Step 6: Final answer
    x = 29,933,808.95

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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.