Home / 221,185,308.80-331,777,963.20-205,060,995.20

Finding the Fourth Proportional to 221,185,308.80, 331,777,963.20 and 205,060,995.20

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Solution

The fourth proportional to 221,185,308.80, 331,777,963.20 and 205,060,995.20 is: 307,591,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,185,308.80 : 331,777,963.20 = 205,060,995.20 : x
  2. Step 2: Convert to fraction form
    221,185,308.80/331,777,963.20 = 205,060,995.20/x
  3. Step 3: Cross multiply
    221,185,308.80x = 331,777,963.20 × 205,060,995.20
  4. Step 4: Simplify right side
    221,185,308.80x = 68,034,719,319,220,968
  5. Step 5: Solve for x
    x = 68,034,719,319,220,968/221,185,308.80
  6. Step 6: Final answer
    x = 307,591,492.80

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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.