Home / 206,328,014.80-309,492,022.20-137,453,261.20

Finding the Fourth Proportional to 206,328,014.80, 309,492,022.20 and 137,453,261.20

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Solution

The fourth proportional to 206,328,014.80, 309,492,022.20 and 137,453,261.20 is: 206,179,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,328,014.80 : 309,492,022.20 = 137,453,261.20 : x
  2. Step 2: Convert to fraction form
    206,328,014.80/309,492,022.20 = 137,453,261.20/x
  3. Step 3: Cross multiply
    206,328,014.80x = 309,492,022.20 × 137,453,261.20
  4. Step 4: Simplify right side
    206,328,014.80x = 42,540,687,766,772,792
  5. Step 5: Solve for x
    x = 42,540,687,766,772,792/206,328,014.80
  6. Step 6: Final answer
    x = 206,179,891.80

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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.