Home / 18,240,375.78-27,345,110.67-7,997,472.90

Finding the Fourth Proportional to 18,240,375.78, 27,345,110.67 and 7,997,472.90

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Solution

The fourth proportional to 18,240,375.78, 27,345,110.67 and 7,997,472.90 is: 11,989,434.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240,375.78 : 27,345,110.67 = 7,997,472.90 : x
  2. Step 2: Convert to fraction form
    18,240,375.78/27,345,110.67 = 7,997,472.90/x
  3. Step 3: Cross multiply
    18,240,375.78x = 27,345,110.67 × 7,997,472.90
  4. Step 4: Simplify right side
    18,240,375.78x = 218,691,781,530,825.88
  5. Step 5: Solve for x
    x = 218,691,781,530,825.88/18,240,375.78
  6. Step 6: Final answer
    x = 11,989,434.00

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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.