Home / 198,993,506,912.40-298,490,260,368.60-163,660,758,315.60

Finding the Fourth Proportional to 198,993,506,912.40, 298,490,260,368.60 and 163,660,758,315.60

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Solution

The fourth proportional to 198,993,506,912.40, 298,490,260,368.60 and 163,660,758,315.60 is: 245,491,137,473.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,993,506,912.40 : 298,490,260,368.60 = 163,660,758,315.60 : x
  2. Step 2: Convert to fraction form
    198,993,506,912.40/298,490,260,368.60 = 163,660,758,315.60/x
  3. Step 3: Cross multiply
    198,993,506,912.40x = 298,490,260,368.60 × 163,660,758,315.60
  4. Step 4: Simplify right side
    198,993,506,912.40x = 48,851,142,361,745,960,468,480
  5. Step 5: Solve for x
    x = 48,851,142,361,745,960,468,480/198,993,506,912.40
  6. Step 6: Final answer
    x = 245,491,137,473.40

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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.