Home / 18,994,135.20-28,491,202.80-8,203,914.60

Finding the Fourth Proportional to 18,994,135.20, 28,491,202.80 and 8,203,914.60

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Solution

The fourth proportional to 18,994,135.20, 28,491,202.80 and 8,203,914.60 is: 12,305,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,994,135.20 : 28,491,202.80 = 8,203,914.60 : x
  2. Step 2: Convert to fraction form
    18,994,135.20/28,491,202.80 = 8,203,914.60/x
  3. Step 3: Cross multiply
    18,994,135.20x = 28,491,202.80 × 8,203,914.60
  4. Step 4: Simplify right side
    18,994,135.20x = 233,739,394,622,480.88
  5. Step 5: Solve for x
    x = 233,739,394,622,480.88/18,994,135.20
  6. Step 6: Final answer
    x = 12,305,871.90

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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.