Home / 20,386,085.04-28,132,801.56-11,218,727.88

Finding the Fourth Proportional to 20,386,085.04, 28,132,801.56 and 11,218,727.88

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Solution

The fourth proportional to 20,386,085.04, 28,132,801.56 and 11,218,727.88 is: 15,481,846.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,085.04 : 28,132,801.56 = 11,218,727.88 : x
  2. Step 2: Convert to fraction form
    20,386,085.04/28,132,801.56 = 11,218,727.88/x
  3. Step 3: Cross multiply
    20,386,085.04x = 28,132,801.56 × 11,218,727.88
  4. Step 4: Simplify right side
    20,386,085.04x = 315,614,245,203,679.50
  5. Step 5: Solve for x
    x = 315,614,245,203,679.50/20,386,085.04
  6. Step 6: Final answer
    x = 15,481,846.79

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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.