Home / 20,504,022.40-30,756,033.60-11,979,971.20

Finding the Fourth Proportional to 20,504,022.40, 30,756,033.60 and 11,979,971.20

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Solution

The fourth proportional to 20,504,022.40, 30,756,033.60 and 11,979,971.20 is: 17,969,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504,022.40 : 30,756,033.60 = 11,979,971.20 : x
  2. Step 2: Convert to fraction form
    20,504,022.40/30,756,033.60 = 11,979,971.20/x
  3. Step 3: Cross multiply
    20,504,022.40x = 30,756,033.60 × 11,979,971.20
  4. Step 4: Simplify right side
    20,504,022.40x = 368,456,396,754,232.31
  5. Step 5: Solve for x
    x = 368,456,396,754,232.31/20,504,022.40
  6. Step 6: Final answer
    x = 17,969,956.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.