Home / 18,517,523.03-27,663,658.25-11,987,400.20

Finding the Fourth Proportional to 18,517,523.03, 27,663,658.25 and 11,987,400.20

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Solution

The fourth proportional to 18,517,523.03, 27,663,658.25 and 11,987,400.20 is: 17,908,191.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517,523.03 : 27,663,658.25 = 11,987,400.20 : x
  2. Step 2: Convert to fraction form
    18,517,523.03/27,663,658.25 = 11,987,400.20/x
  3. Step 3: Cross multiply
    18,517,523.03x = 27,663,658.25 × 11,987,400.20
  4. Step 4: Simplify right side
    18,517,523.03x = 331,615,342,240,526.38
  5. Step 5: Solve for x
    x = 331,615,342,240,526.38/18,517,523.03
  6. Step 6: Final answer
    x = 17,908,191.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.