Home / 21,961,042.96-30,306,242.19-12,172,118.44

Finding the Fourth Proportional to 21,961,042.96, 30,306,242.19 and 12,172,118.44

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Solution

The fourth proportional to 21,961,042.96, 30,306,242.19 and 12,172,118.44 is: 16,797,525.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,961,042.96 : 30,306,242.19 = 12,172,118.44 : x
  2. Step 2: Convert to fraction form
    21,961,042.96/30,306,242.19 = 12,172,118.44/x
  3. Step 3: Cross multiply
    21,961,042.96x = 30,306,242.19 × 12,172,118.44
  4. Step 4: Simplify right side
    21,961,042.96x = 368,891,169,408,005
  5. Step 5: Solve for x
    x = 368,891,169,408,005/21,961,042.96
  6. Step 6: Final answer
    x = 16,797,525.06

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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.