Home / 20,589,608.88-28,413,693.72-11,422,251.72

Finding the Fourth Proportional to 20,589,608.88, 28,413,693.72 and 11,422,251.72

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Solution

The fourth proportional to 20,589,608.88, 28,413,693.72 and 11,422,251.72 is: 15,762,725.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589,608.88 : 28,413,693.72 = 11,422,251.72 : x
  2. Step 2: Convert to fraction form
    20,589,608.88/28,413,693.72 = 11,422,251.72/x
  3. Step 3: Cross multiply
    20,589,608.88x = 28,413,693.72 × 11,422,251.72
  4. Step 4: Simplify right side
    20,589,608.88x = 324,548,361,964,823.19
  5. Step 5: Solve for x
    x = 324,548,361,964,823.19/20,589,608.88
  6. Step 6: Final answer
    x = 15,762,725.94

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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.