Home / 87,631,193.38-120,297,788.30-75,219,739.42

Finding the Fourth Proportional to 87,631,193.38, 120,297,788.30 and 75,219,739.42

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Solution

The fourth proportional to 87,631,193.38, 120,297,788.30 and 75,219,739.42 is: 103,259,672.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,631,193.38 : 120,297,788.30 = 75,219,739.42 : x
  2. Step 2: Convert to fraction form
    87,631,193.38/120,297,788.30 = 75,219,739.42/x
  3. Step 3: Cross multiply
    87,631,193.38x = 120,297,788.30 × 75,219,739.42
  4. Step 4: Simplify right side
    87,631,193.38x = 9,048,768,288,728,324
  5. Step 5: Solve for x
    x = 9,048,768,288,728,324/87,631,193.38
  6. Step 6: Final answer
    x = 103,259,672.04

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.