Home / 20,419,993.36-28,179,777-11,252,964.88

Finding the Fourth Proportional to 20,419,993.36, 28,179,777 and 11,252,964.88

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Solution

The fourth proportional to 20,419,993.36, 28,179,777 and 11,252,964.88 is: 15,529,194.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,419,993.36 : 28,179,777 = 11,252,964.88 : x
  2. Step 2: Convert to fraction form
    20,419,993.36/28,179,777 = 11,252,964.88/x
  3. Step 3: Cross multiply
    20,419,993.36x = 28,179,777 × 11,252,964.88
  4. Step 4: Simplify right side
    20,419,993.36x = 317,106,040,907,231.81
  5. Step 5: Solve for x
    x = 317,106,040,907,231.81/20,419,993.36
  6. Step 6: Final answer
    x = 15,529,194.12

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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.