Home / 252,512,999.90-378,675,021.45-88,687,454.30

Finding the Fourth Proportional to 252,512,999.90, 378,675,021.45 and 88,687,454.30

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Solution

The fourth proportional to 252,512,999.90, 378,675,021.45 and 88,687,454.30 is: 132,997,998.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,512,999.90 : 378,675,021.45 = 88,687,454.30 : x
  2. Step 2: Convert to fraction form
    252,512,999.90/378,675,021.45 = 88,687,454.30/x
  3. Step 3: Cross multiply
    252,512,999.90x = 378,675,021.45 × 88,687,454.30
  4. Step 4: Simplify right side
    252,512,999.90x = 33,583,723,659,398,392
  5. Step 5: Solve for x
    x = 33,583,723,659,398,392/252,512,999.90
  6. Step 6: Final answer
    x = 132,997,998.81

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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.