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Finding the Fourth Proportional to 29,722,978.80, 44,542,477.80 and 21,986,247.60

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Solution

The fourth proportional to 29,722,978.80, 44,542,477.80 and 21,986,247.60 is: 32,948,310.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,722,978.80 : 44,542,477.80 = 21,986,247.60 : x
  2. Step 2: Convert to fraction form
    29,722,978.80/44,542,477.80 = 21,986,247.60/x
  3. Step 3: Cross multiply
    29,722,978.80x = 44,542,477.80 × 21,986,247.60
  4. Step 4: Simplify right side
    29,722,978.80x = 979,321,945,628,303.25
  5. Step 5: Solve for x
    x = 979,321,945,628,303.25/29,722,978.80
  6. Step 6: Final answer
    x = 32,948,310.87

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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.