Home / 20,189,369.28-27,862,919.52-11,487,908.16

Finding the Fourth Proportional to 20,189,369.28, 27,862,919.52 and 11,487,908.16

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Solution

The fourth proportional to 20,189,369.28, 27,862,919.52 and 11,487,908.16 is: 15,854,217.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189,369.28 : 27,862,919.52 = 11,487,908.16 : x
  2. Step 2: Convert to fraction form
    20,189,369.28/27,862,919.52 = 11,487,908.16/x
  3. Step 3: Cross multiply
    20,189,369.28x = 27,862,919.52 × 11,487,908.16
  4. Step 4: Simplify right side
    20,189,369.28x = 320,086,660,515,231.31
  5. Step 5: Solve for x
    x = 320,086,660,515,231.31/20,189,369.28
  6. Step 6: Final answer
    x = 15,854,217.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.