Home / 20,320,449.92-30,485,986.68-11,792,588.48

Finding the Fourth Proportional to 20,320,449.92, 30,485,986.68 and 11,792,588.48

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Solution

The fourth proportional to 20,320,449.92, 30,485,986.68 and 11,792,588.48 is: 17,691,965.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,320,449.92 : 30,485,986.68 = 11,792,588.48 : x
  2. Step 2: Convert to fraction form
    20,320,449.92/30,485,986.68 = 11,792,588.48/x
  3. Step 3: Cross multiply
    20,320,449.92x = 30,485,986.68 × 11,792,588.48
  4. Step 4: Simplify right side
    20,320,449.92x = 359,508,695,324,001.44
  5. Step 5: Solve for x
    x = 359,508,695,324,001.44/20,320,449.92
  6. Step 6: Final answer
    x = 17,691,965.32

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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.