Home / 21,289,319.22-29,379,273.39-11,499,767.73

Finding the Fourth Proportional to 21,289,319.22, 29,379,273.39 and 11,499,767.73

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Solution

The fourth proportional to 21,289,319.22, 29,379,273.39 and 11,499,767.73 is: 15,869,686.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289,319.22 : 29,379,273.39 = 11,499,767.73 : x
  2. Step 2: Convert to fraction form
    21,289,319.22/29,379,273.39 = 11,499,767.73/x
  3. Step 3: Cross multiply
    21,289,319.22x = 29,379,273.39 × 11,499,767.73
  4. Step 4: Simplify right side
    21,289,319.22x = 337,854,819,981,558.75
  5. Step 5: Solve for x
    x = 337,854,819,981,558.75/21,289,319.22
  6. Step 6: Final answer
    x = 15,869,686.42

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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.