Home / 252,354,618.30-378,567,356.85-79,813,440.30

Finding the Fourth Proportional to 252,354,618.30, 378,567,356.85 and 79,813,440.30

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Solution

The fourth proportional to 252,354,618.30, 378,567,356.85 and 79,813,440.30 is: 119,731,365.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,354,618.30 : 378,567,356.85 = 79,813,440.30 : x
  2. Step 2: Convert to fraction form
    252,354,618.30/378,567,356.85 = 79,813,440.30/x
  3. Step 3: Cross multiply
    252,354,618.30x = 378,567,356.85 × 79,813,440.30
  4. Step 4: Simplify right side
    252,354,618.30x = 30,214,763,135,476,272
  5. Step 5: Solve for x
    x = 30,214,763,135,476,272/252,354,618.30
  6. Step 6: Final answer
    x = 119,731,365.88

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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.