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Finding the Fourth Proportional to 297,310,990.80, 445,084,687.80 and 220,972,443.60

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Solution

The fourth proportional to 297,310,990.80, 445,084,687.80 and 220,972,443.60 is: 330,803,280.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,310,990.80 : 445,084,687.80 = 220,972,443.60 : x
  2. Step 2: Convert to fraction form
    297,310,990.80/445,084,687.80 = 220,972,443.60/x
  3. Step 3: Cross multiply
    297,310,990.80x = 445,084,687.80 × 220,972,443.60
  4. Step 4: Simplify right side
    297,310,990.80x = 98,351,451,072,109,104
  5. Step 5: Solve for x
    x = 98,351,451,072,109,104/297,310,990.80
  6. Step 6: Final answer
    x = 330,803,280.46

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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.