Home / 20,428,726.50-28,191,836.97-11,261,698.02

Finding the Fourth Proportional to 20,428,726.50, 28,191,836.97 and 11,261,698.02

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Solution

The fourth proportional to 20,428,726.50, 28,191,836.97 and 11,261,698.02 is: 15,541,250.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,428,726.50 : 28,191,836.97 = 11,261,698.02 : x
  2. Step 2: Convert to fraction form
    20,428,726.50/28,191,836.97 = 11,261,698.02/x
  3. Step 3: Cross multiply
    20,428,726.50x = 28,191,836.97 × 11,261,698.02
  4. Step 4: Simplify right side
    20,428,726.50x = 317,487,954,585,211.75
  5. Step 5: Solve for x
    x = 317,487,954,585,211.75/20,428,726.50
  6. Step 6: Final answer
    x = 15,541,250.43

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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.