Home / 217,469,881.70-326,204,822.55-120,724,000.10

Finding the Fourth Proportional to 217,469,881.70, 326,204,822.55 and 120,724,000.10

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Solution

The fourth proportional to 217,469,881.70, 326,204,822.55 and 120,724,000.10 is: 181,086,000.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,469,881.70 : 326,204,822.55 = 120,724,000.10 : x
  2. Step 2: Convert to fraction form
    217,469,881.70/326,204,822.55 = 120,724,000.10/x
  3. Step 3: Cross multiply
    217,469,881.70x = 326,204,822.55 × 120,724,000.10
  4. Step 4: Simplify right side
    217,469,881.70x = 39,380,751,030,146,680
  5. Step 5: Solve for x
    x = 39,380,751,030,146,680/217,469,881.70
  6. Step 6: Final answer
    x = 181,086,000.15

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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.