Home / 20,855,422.08-28,782,186.24-11,565,901.44

Finding the Fourth Proportional to 20,855,422.08, 28,782,186.24 and 11,565,901.44

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Solution

The fourth proportional to 20,855,422.08, 28,782,186.24 and 11,565,901.44 is: 15,961,888.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,855,422.08 : 28,782,186.24 = 11,565,901.44 : x
  2. Step 2: Convert to fraction form
    20,855,422.08/28,782,186.24 = 11,565,901.44/x
  3. Step 3: Cross multiply
    20,855,422.08x = 28,782,186.24 × 11,565,901.44
  4. Step 4: Simplify right side
    20,855,422.08x = 332,891,929,279,564.12
  5. Step 5: Solve for x
    x = 332,891,929,279,564.12/20,855,422.08
  6. Step 6: Final answer
    x = 15,961,888.86

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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.