Home / 20,504,023.40-30,756,035.10-11,979,972.20

Finding the Fourth Proportional to 20,504,023.40, 30,756,035.10 and 11,979,972.20

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Solution

The fourth proportional to 20,504,023.40, 30,756,035.10 and 11,979,972.20 is: 17,969,958.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504,023.40 : 30,756,035.10 = 11,979,972.20 : x
  2. Step 2: Convert to fraction form
    20,504,023.40/30,756,035.10 = 11,979,972.20/x
  3. Step 3: Cross multiply
    20,504,023.40x = 30,756,035.10 × 11,979,972.20
  4. Step 4: Simplify right side
    20,504,023.40x = 368,456,445,480,224.19
  5. Step 5: Solve for x
    x = 368,456,445,480,224.19/20,504,023.40
  6. Step 6: Final answer
    x = 17,969,958.30

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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.