Home / 18,192,867.60-27,289,738.80-5,413,789.20

Finding the Fourth Proportional to 18,192,867.60, 27,289,738.80 and 5,413,789.20

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Solution

The fourth proportional to 18,192,867.60, 27,289,738.80 and 5,413,789.20 is: 8,120,813.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,192,867.60 : 27,289,738.80 = 5,413,789.20 : x
  2. Step 2: Convert to fraction form
    18,192,867.60/27,289,738.80 = 5,413,789.20/x
  3. Step 3: Cross multiply
    18,192,867.60x = 27,289,738.80 × 5,413,789.20
  4. Step 4: Simplify right side
    18,192,867.60x = 147,740,893,186,260.97
  5. Step 5: Solve for x
    x = 147,740,893,186,260.97/18,192,867.60
  6. Step 6: Final answer
    x = 8,120,813.96

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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.