Home / 18,152,992.80-27,192,164.40-12,479,623.20

Finding the Fourth Proportional to 18,152,992.80, 27,192,164.40 and 12,479,623.20

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Solution

The fourth proportional to 18,152,992.80, 27,192,164.40 and 12,479,623.20 is: 18,693,775.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,152,992.80 : 27,192,164.40 = 12,479,623.20 : x
  2. Step 2: Convert to fraction form
    18,152,992.80/27,192,164.40 = 12,479,623.20/x
  3. Step 3: Cross multiply
    18,152,992.80x = 27,192,164.40 × 12,479,623.20
  4. Step 4: Simplify right side
    18,152,992.80x = 339,347,965,704,454.06
  5. Step 5: Solve for x
    x = 339,347,965,704,454.06/18,152,992.80
  6. Step 6: Final answer
    x = 18,693,775.15

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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.