Home / 20,385,806.52-28,132,417.60-11,218,449.27

Finding the Fourth Proportional to 20,385,806.52, 28,132,417.60 and 11,218,449.27

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Solution

The fourth proportional to 20,385,806.52, 28,132,417.60 and 11,218,449.27 is: 15,481,462.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,385,806.52 : 28,132,417.60 = 11,218,449.27 : x
  2. Step 2: Convert to fraction form
    20,385,806.52/28,132,417.60 = 11,218,449.27/x
  3. Step 3: Cross multiply
    20,385,806.52x = 28,132,417.60 × 11,218,449.27
  4. Step 4: Simplify right side
    20,385,806.52x = 315,602,099,765,505.56
  5. Step 5: Solve for x
    x = 315,602,099,765,505.56/20,385,806.52
  6. Step 6: Final answer
    x = 15,481,462.53

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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.