Home / 198,685,280.20-298,367,990.70-107,986,016.20

Finding the Fourth Proportional to 198,685,280.20, 298,367,990.70 and 107,986,016.20

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Solution

The fourth proportional to 198,685,280.20, 298,367,990.70 and 107,986,016.20 is: 162,163,853.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,685,280.20 : 298,367,990.70 = 107,986,016.20 : x
  2. Step 2: Convert to fraction form
    198,685,280.20/298,367,990.70 = 107,986,016.20/x
  3. Step 3: Cross multiply
    198,685,280.20x = 298,367,990.70 × 107,986,016.20
  4. Step 4: Simplify right side
    198,685,280.20x = 32,219,570,677,291,648
  5. Step 5: Solve for x
    x = 32,219,570,677,291,648/198,685,280.20
  6. Step 6: Final answer
    x = 162,163,853.53

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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.