Home / 20,446,979.24-28,216,377.24-11,279,619.56

Finding the Fourth Proportional to 20,446,979.24, 28,216,377.24 and 11,279,619.56

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Solution

The fourth proportional to 20,446,979.24, 28,216,377.24 and 11,279,619.56 is: 15,565,624.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446,979.24 : 28,216,377.24 = 11,279,619.56 : x
  2. Step 2: Convert to fraction form
    20,446,979.24/28,216,377.24 = 11,279,619.56/x
  3. Step 3: Cross multiply
    20,446,979.24x = 28,216,377.24 × 11,279,619.56
  4. Step 4: Simplify right side
    20,446,979.24x = 318,270,000,656,885.19
  5. Step 5: Solve for x
    x = 318,270,000,656,885.19/20,446,979.24
  6. Step 6: Final answer
    x = 15,565,624.48

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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.