Home / 18,191,839.80-27,291,696.30-5,413,636.20

Finding the Fourth Proportional to 18,191,839.80, 27,291,696.30 and 5,413,636.20

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Solution

The fourth proportional to 18,191,839.80, 27,291,696.30 and 5,413,636.20 is: 8,121,625.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191,839.80 : 27,291,696.30 = 5,413,636.20 : x
  2. Step 2: Convert to fraction form
    18,191,839.80/27,291,696.30 = 5,413,636.20/x
  3. Step 3: Cross multiply
    18,191,839.80x = 27,291,696.30 × 5,413,636.20
  4. Step 4: Simplify right side
    18,191,839.80x = 147,747,315,049,086.06
  5. Step 5: Solve for x
    x = 147,747,315,049,086.06/18,191,839.80
  6. Step 6: Final answer
    x = 8,121,625.78

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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.