Home / 198,993,506,911.40-298,490,260,367.10-163,660,758,314.60

Finding the Fourth Proportional to 198,993,506,911.40, 298,490,260,367.10 and 163,660,758,314.60

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Solution

The fourth proportional to 198,993,506,911.40, 298,490,260,367.10 and 163,660,758,314.60 is: 245,491,137,471.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,993,506,911.40 : 298,490,260,367.10 = 163,660,758,314.60 : x
  2. Step 2: Convert to fraction form
    198,993,506,911.40/298,490,260,367.10 = 163,660,758,314.60/x
  3. Step 3: Cross multiply
    198,993,506,911.40x = 298,490,260,367.10 × 163,660,758,314.60
  4. Step 4: Simplify right side
    198,993,506,911.40x = 48,851,142,361,201,976,016,896
  5. Step 5: Solve for x
    x = 48,851,142,361,201,976,016,896/198,993,506,911.40
  6. Step 6: Final answer
    x = 245,491,137,471.90

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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.