Home / 18,722,563.20-28,083,844.80-7,357,161.60

Finding the Fourth Proportional to 18,722,563.20, 28,083,844.80 and 7,357,161.60

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Solution

The fourth proportional to 18,722,563.20, 28,083,844.80 and 7,357,161.60 is: 11,035,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,563.20 : 28,083,844.80 = 7,357,161.60 : x
  2. Step 2: Convert to fraction form
    18,722,563.20/28,083,844.80 = 7,357,161.60/x
  3. Step 3: Cross multiply
    18,722,563.20x = 28,083,844.80 × 7,357,161.60
  4. Step 4: Simplify right side
    18,722,563.20x = 206,617,384,542,919.69
  5. Step 5: Solve for x
    x = 206,617,384,542,919.69/18,722,563.20
  6. Step 6: Final answer
    x = 11,035,742.40

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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.