Home / 18,288,255.76-27,428,887.17-9,187,831.64

Finding the Fourth Proportional to 18,288,255.76, 27,428,887.17 and 9,187,831.64

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Solution

The fourth proportional to 18,288,255.76, 27,428,887.17 and 9,187,831.64 is: 13,779,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288,255.76 : 27,428,887.17 = 9,187,831.64 : x
  2. Step 2: Convert to fraction form
    18,288,255.76/27,428,887.17 = 9,187,831.64/x
  3. Step 3: Cross multiply
    18,288,255.76x = 27,428,887.17 × 9,187,831.64
  4. Step 4: Simplify right side
    18,288,255.76x = 252,011,997,344,576.91
  5. Step 5: Solve for x
    x = 252,011,997,344,576.91/18,288,255.76
  6. Step 6: Final answer
    x = 13,779,990.87

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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.