Home / 18,969,942.62-28,459,440.78-6,190,471.10

Finding the Fourth Proportional to 18,969,942.62, 28,459,440.78 and 6,190,471.10

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Solution

The fourth proportional to 18,969,942.62, 28,459,440.78 and 6,190,471.10 is: 9,287,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969,942.62 : 28,459,440.78 = 6,190,471.10 : x
  2. Step 2: Convert to fraction form
    18,969,942.62/28,459,440.78 = 6,190,471.10/x
  3. Step 3: Cross multiply
    18,969,942.62x = 28,459,440.78 × 6,190,471.10
  4. Step 4: Simplify right side
    18,969,942.62x = 176,177,345,670,751.47
  5. Step 5: Solve for x
    x = 176,177,345,670,751.47/18,969,942.62
  6. Step 6: Final answer
    x = 9,287,183.90

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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.