Home / 217,469,880.70-326,204,821.05-120,723,999.10

Finding the Fourth Proportional to 217,469,880.70, 326,204,821.05 and 120,723,999.10

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Solution

The fourth proportional to 217,469,880.70, 326,204,821.05 and 120,723,999.10 is: 181,085,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,469,880.70 : 326,204,821.05 = 120,723,999.10 : x
  2. Step 2: Convert to fraction form
    217,469,880.70/326,204,821.05 = 120,723,999.10/x
  3. Step 3: Cross multiply
    217,469,880.70x = 326,204,821.05 × 120,723,999.10
  4. Step 4: Simplify right side
    217,469,880.70x = 39,380,750,522,855,864
  5. Step 5: Solve for x
    x = 39,380,750,522,855,864/217,469,880.70
  6. Step 6: Final answer
    x = 181,085,998.65

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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.