Home / 18,500,001.75-27,740,441.01-8,120,972.88

Finding the Fourth Proportional to 18,500,001.75, 27,740,441.01 and 8,120,972.88

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Solution

The fourth proportional to 18,500,001.75, 27,740,441.01 and 8,120,972.88 is: 12,177,262.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,500,001.75 : 27,740,441.01 = 8,120,972.88 : x
  2. Step 2: Convert to fraction form
    18,500,001.75/27,740,441.01 = 8,120,972.88/x
  3. Step 3: Cross multiply
    18,500,001.75x = 27,740,441.01 × 8,120,972.88
  4. Step 4: Simplify right side
    18,500,001.75x = 225,279,369,121,449.81
  5. Step 5: Solve for x
    x = 225,279,369,121,449.81/18,500,001.75
  6. Step 6: Final answer
    x = 12,177,262.04

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1.5x scale

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.