Home / 18,172,699.80-27,259,049.70-15,432,826.20

Finding the Fourth Proportional to 18,172,699.80, 27,259,049.70 and 15,432,826.20

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Solution

The fourth proportional to 18,172,699.80, 27,259,049.70 and 15,432,826.20 is: 23,149,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172,699.80 : 27,259,049.70 = 15,432,826.20 : x
  2. Step 2: Convert to fraction form
    18,172,699.80/27,259,049.70 = 15,432,826.20/x
  3. Step 3: Cross multiply
    18,172,699.80x = 27,259,049.70 × 15,432,826.20
  4. Step 4: Simplify right side
    18,172,699.80x = 420,684,176,397,262.12
  5. Step 5: Solve for x
    x = 420,684,176,397,262.12/18,172,699.80
  6. Step 6: Final answer
    x = 23,149,239.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.