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Finding the Fourth Proportional to 252,261,640.20, 378,392,460.30 and 252,261,640.20

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Solution

The fourth proportional to 252,261,640.20, 378,392,460.30 and 252,261,640.20 is: 378,392,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,261,640.20 : 378,392,460.30 = 252,261,640.20 : x
  2. Step 2: Convert to fraction form
    252,261,640.20/378,392,460.30 = 252,261,640.20/x
  3. Step 3: Cross multiply
    252,261,640.20x = 378,392,460.30 × 252,261,640.20
  4. Step 4: Simplify right side
    252,261,640.20x = 95,453,902,674,591,376
  5. Step 5: Solve for x
    x = 95,453,902,674,591,376/252,261,640.20
  6. Step 6: Final answer
    x = 378,392,460.30

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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.