Home / 21,289,321.22-29,379,276.15-11,499,769.73

Finding the Fourth Proportional to 21,289,321.22, 29,379,276.15 and 11,499,769.73

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Solution

The fourth proportional to 21,289,321.22, 29,379,276.15 and 11,499,769.73 is: 15,869,689.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289,321.22 : 29,379,276.15 = 11,499,769.73 : x
  2. Step 2: Convert to fraction form
    21,289,321.22/29,379,276.15 = 11,499,769.73/x
  3. Step 3: Cross multiply
    21,289,321.22x = 29,379,276.15 × 11,499,769.73
  4. Step 4: Simplify right side
    21,289,321.22x = 337,854,910,559,080.94
  5. Step 5: Solve for x
    x = 337,854,910,559,080.94/21,289,321.22
  6. Step 6: Final answer
    x = 15,869,689.18

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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.