Home / 20,561,890.60-28,375,573.38-11,394,685.48

Finding the Fourth Proportional to 20,561,890.60, 28,375,573.38 and 11,394,685.48

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Solution

The fourth proportional to 20,561,890.60, 28,375,573.38 and 11,394,685.48 is: 15,724,757.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561,890.60 : 28,375,573.38 = 11,394,685.48 : x
  2. Step 2: Convert to fraction form
    20,561,890.60/28,375,573.38 = 11,394,685.48/x
  3. Step 3: Cross multiply
    20,561,890.60x = 28,375,573.38 × 11,394,685.48
  4. Step 4: Simplify right side
    20,561,890.60x = 323,330,733,979,760.50
  5. Step 5: Solve for x
    x = 323,330,733,979,760.50/20,561,890.60
  6. Step 6: Final answer
    x = 15,724,757.04

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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.