Home / 221,183,999.20-331,775,998.80-205,059,685.60

Finding the Fourth Proportional to 221,183,999.20, 331,775,998.80 and 205,059,685.60

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Solution

The fourth proportional to 221,183,999.20, 331,775,998.80 and 205,059,685.60 is: 307,589,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,183,999.20 : 331,775,998.80 = 205,059,685.60 : x
  2. Step 2: Convert to fraction form
    221,183,999.20/331,775,998.80 = 205,059,685.60/x
  3. Step 3: Cross multiply
    221,183,999.20x = 331,775,998.80 × 205,059,685.60
  4. Step 4: Simplify right side
    221,183,999.20x = 68,033,882,003,553,976
  5. Step 5: Solve for x
    x = 68,033,882,003,553,976/221,183,999.20
  6. Step 6: Final answer
    x = 307,589,528.40

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1.5x scale

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.