Home / 18,191,843.80-27,291,702.30-5,413,640.20

Finding the Fourth Proportional to 18,191,843.80, 27,291,702.30 and 5,413,640.20

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Solution

The fourth proportional to 18,191,843.80, 27,291,702.30 and 5,413,640.20 is: 8,121,631.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191,843.80 : 27,291,702.30 = 5,413,640.20 : x
  2. Step 2: Convert to fraction form
    18,191,843.80/27,291,702.30 = 5,413,640.20/x
  3. Step 3: Cross multiply
    18,191,843.80x = 27,291,702.30 × 5,413,640.20
  4. Step 4: Simplify right side
    18,191,843.80x = 147,747,456,697,712.47
  5. Step 5: Solve for x
    x = 147,747,456,697,712.47/18,191,843.80
  6. Step 6: Final answer
    x = 8,121,631.78

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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.