Home / 20,554,169.29-28,357,770.67-11,727,279.42

Finding the Fourth Proportional to 20,554,169.29, 28,357,770.67 and 11,727,279.42

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Solution

The fourth proportional to 20,554,169.29, 28,357,770.67 and 11,727,279.42 is: 16,179,661.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554,169.29 : 28,357,770.67 = 11,727,279.42 : x
  2. Step 2: Convert to fraction form
    20,554,169.29/28,357,770.67 = 11,727,279.42/x
  3. Step 3: Cross multiply
    20,554,169.29x = 28,357,770.67 × 11,727,279.42
  4. Step 4: Simplify right side
    20,554,169.29x = 332,559,500,375,370.62
  5. Step 5: Solve for x
    x = 332,559,500,375,370.62/20,554,169.29
  6. Step 6: Final answer
    x = 16,179,661.44

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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.