Home / 18,981,069.35-28,517,025.71-12,170,985.03

Finding the Fourth Proportional to 18,981,069.35, 28,517,025.71 and 12,170,985.03

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Solution

The fourth proportional to 18,981,069.35, 28,517,025.71 and 12,170,985.03 is: 18,285,602.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981,069.35 : 28,517,025.71 = 12,170,985.03 : x
  2. Step 2: Convert to fraction form
    18,981,069.35/28,517,025.71 = 12,170,985.03/x
  3. Step 3: Cross multiply
    18,981,069.35x = 28,517,025.71 × 12,170,985.03
  4. Step 4: Simplify right side
    18,981,069.35x = 347,080,293,046,962.56
  5. Step 5: Solve for x
    x = 347,080,293,046,962.56/18,981,069.35
  6. Step 6: Final answer
    x = 18,285,602.71

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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.