Home / 20,612,617.22-28,456,455.28-15,892,704.04

Finding the Fourth Proportional to 20,612,617.22, 28,456,455.28 and 15,892,704.04

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Solution

The fourth proportional to 20,612,617.22, 28,456,455.28 and 15,892,704.04 is: 21,940,446.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612,617.22 : 28,456,455.28 = 15,892,704.04 : x
  2. Step 2: Convert to fraction form
    20,612,617.22/28,456,455.28 = 15,892,704.04/x
  3. Step 3: Cross multiply
    20,612,617.22x = 28,456,455.28 × 15,892,704.04
  4. Step 4: Simplify right side
    20,612,617.22x = 452,250,021,792,535.31
  5. Step 5: Solve for x
    x = 452,250,021,792,535.31/20,612,617.22
  6. Step 6: Final answer
    x = 21,940,446.33

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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.