Home / 20,221,399.68-27,905,717.28-11,519,443.32

Finding the Fourth Proportional to 20,221,399.68, 27,905,717.28 and 11,519,443.32

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Solution

The fourth proportional to 20,221,399.68, 27,905,717.28 and 11,519,443.32 is: 15,896,937.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221,399.68 : 27,905,717.28 = 11,519,443.32 : x
  2. Step 2: Convert to fraction form
    20,221,399.68/27,905,717.28 = 11,519,443.32/x
  3. Step 3: Cross multiply
    20,221,399.68x = 27,905,717.28 × 11,519,443.32
  4. Step 4: Simplify right side
    20,221,399.68x = 321,458,328,510,904.56
  5. Step 5: Solve for x
    x = 321,458,328,510,904.56/20,221,399.68
  6. Step 6: Final answer
    x = 15,896,937.58

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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.