Home / 18,134,687.40-27,189,405.18-8,031,831.72

Finding the Fourth Proportional to 18,134,687.40, 27,189,405.18 and 8,031,831.72

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Solution

The fourth proportional to 18,134,687.40, 27,189,405.18 and 8,031,831.72 is: 12,042,155.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,134,687.40 : 27,189,405.18 = 8,031,831.72 : x
  2. Step 2: Convert to fraction form
    18,134,687.40/27,189,405.18 = 8,031,831.72/x
  3. Step 3: Cross multiply
    18,134,687.40x = 27,189,405.18 × 8,031,831.72
  4. Step 4: Simplify right side
    18,134,687.40x = 218,380,726,972,656.31
  5. Step 5: Solve for x
    x = 218,380,726,972,656.31/18,134,687.40
  6. Step 6: Final answer
    x = 12,042,155.57

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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.