Home / 20,198,546.40-27,874,681.84-11,945,683.20

Finding the Fourth Proportional to 20,198,546.40, 27,874,681.84 and 11,945,683.20

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Solution

The fourth proportional to 20,198,546.40, 27,874,681.84 and 11,945,683.20 is: 16,485,449.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198,546.40 : 27,874,681.84 = 11,945,683.20 : x
  2. Step 2: Convert to fraction form
    20,198,546.40/27,874,681.84 = 11,945,683.20/x
  3. Step 3: Cross multiply
    20,198,546.40x = 27,874,681.84 × 11,945,683.20
  4. Step 4: Simplify right side
    20,198,546.40x = 332,982,118,561,433.06
  5. Step 5: Solve for x
    x = 332,982,118,561,433.06/20,198,546.40
  6. Step 6: Final answer
    x = 16,485,449.59

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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.