Home / 18,981,076.67-28,517,036.46-12,170,992.35

Finding the Fourth Proportional to 18,981,076.67, 28,517,036.46 and 12,170,992.35

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Solution

The fourth proportional to 18,981,076.67, 28,517,036.46 and 12,170,992.35 is: 18,285,613.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981,076.67 : 28,517,036.46 = 12,170,992.35 : x
  2. Step 2: Convert to fraction form
    18,981,076.67/28,517,036.46 = 12,170,992.35/x
  3. Step 3: Cross multiply
    18,981,076.67x = 28,517,036.46 × 12,170,992.35
  4. Step 4: Simplify right side
    18,981,076.67x = 347,080,632,599,331.06
  5. Step 5: Solve for x
    x = 347,080,632,599,331.06/18,981,076.67
  6. Step 6: Final answer
    x = 18,285,613.54

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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.