Home / 198,685,286.20-298,367,999.70-107,986,022.20

Finding the Fourth Proportional to 198,685,286.20, 298,367,999.70 and 107,986,022.20

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Solution

The fourth proportional to 198,685,286.20, 298,367,999.70 and 107,986,022.20 is: 162,163,862.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,685,286.20 : 298,367,999.70 = 107,986,022.20 : x
  2. Step 2: Convert to fraction form
    198,685,286.20/298,367,999.70 = 107,986,022.20/x
  3. Step 3: Cross multiply
    198,685,286.20x = 298,367,999.70 × 107,986,022.20
  4. Step 4: Simplify right side
    198,685,286.20x = 32,219,573,439,373,792
  5. Step 5: Solve for x
    x = 32,219,573,439,373,792/198,685,286.20
  6. Step 6: Final answer
    x = 162,163,862.54

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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.