Home / 18,981,070.35-28,517,027.21-12,170,986.03

Finding the Fourth Proportional to 18,981,070.35, 28,517,027.21 and 12,170,986.03

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Solution

The fourth proportional to 18,981,070.35, 28,517,027.21 and 12,170,986.03 is: 18,285,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981,070.35 : 28,517,027.21 = 12,170,986.03 : x
  2. Step 2: Convert to fraction form
    18,981,070.35/28,517,027.21 = 12,170,986.03/x
  3. Step 3: Cross multiply
    18,981,070.35x = 28,517,027.21 × 12,170,986.03
  4. Step 4: Simplify right side
    18,981,070.35x = 347,080,339,790,039.88
  5. Step 5: Solve for x
    x = 347,080,339,790,039.88/18,981,070.35
  6. Step 6: Final answer
    x = 18,285,604.20

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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.