Home / 21,960,387.12-30,305,337.05-12,171,463.28

Finding the Fourth Proportional to 21,960,387.12, 30,305,337.05 and 12,171,463.28

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Solution

The fourth proportional to 21,960,387.12, 30,305,337.05 and 12,171,463.28 is: 16,796,620.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960,387.12 : 30,305,337.05 = 12,171,463.28 : x
  2. Step 2: Convert to fraction form
    21,960,387.12/30,305,337.05 = 12,171,463.28/x
  3. Step 3: Cross multiply
    21,960,387.12x = 30,305,337.05 × 12,171,463.28
  4. Step 4: Simplify right side
    21,960,387.12x = 368,860,296,879,714.56
  5. Step 5: Solve for x
    x = 368,860,296,879,714.56/21,960,387.12
  6. Step 6: Final answer
    x = 16,796,620.88

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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.