Home / 20,447,726.79-28,217,942.19-11,155,505.52

Finding the Fourth Proportional to 20,447,726.79, 28,217,942.19 and 11,155,505.52

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Solution

The fourth proportional to 20,447,726.79, 28,217,942.19 and 11,155,505.52 is: 15,394,640.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447,726.79 : 28,217,942.19 = 11,155,505.52 : x
  2. Step 2: Convert to fraction form
    20,447,726.79/28,217,942.19 = 11,155,505.52/x
  3. Step 3: Cross multiply
    20,447,726.79x = 28,217,942.19 × 11,155,505.52
  4. Step 4: Simplify right side
    20,447,726.79x = 314,785,409,863,585.88
  5. Step 5: Solve for x
    x = 314,785,409,863,585.88/20,447,726.79
  6. Step 6: Final answer
    x = 15,394,640.84

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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.