Home / 199,320,905.80-298,981,358.70-126,300,912.40

Finding the Fourth Proportional to 199,320,905.80, 298,981,358.70 and 126,300,912.40

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Solution

The fourth proportional to 199,320,905.80, 298,981,358.70 and 126,300,912.40 is: 189,451,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,320,905.80 : 298,981,358.70 = 126,300,912.40 : x
  2. Step 2: Convert to fraction form
    199,320,905.80/298,981,358.70 = 126,300,912.40/x
  3. Step 3: Cross multiply
    199,320,905.80x = 298,981,358.70 × 126,300,912.40
  4. Step 4: Simplify right side
    199,320,905.80x = 37,761,618,394,401,680
  5. Step 5: Solve for x
    x = 37,761,618,394,401,680/199,320,905.80
  6. Step 6: Final answer
    x = 189,451,368.60

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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.