Home / 21,002,562.30-31,503,843.45-12,019,727.10

Finding the Fourth Proportional to 21,002,562.30, 31,503,843.45 and 12,019,727.10

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Solution

The fourth proportional to 21,002,562.30, 31,503,843.45 and 12,019,727.10 is: 18,029,590.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,002,562.30 : 31,503,843.45 = 12,019,727.10 : x
  2. Step 2: Convert to fraction form
    21,002,562.30/31,503,843.45 = 12,019,727.10/x
  3. Step 3: Cross multiply
    21,002,562.30x = 31,503,843.45 × 12,019,727.10
  4. Step 4: Simplify right side
    21,002,562.30x = 378,667,600,870,122.50
  5. Step 5: Solve for x
    x = 378,667,600,870,122.50/21,002,562.30
  6. Step 6: Final answer
    x = 18,029,590.65

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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.