Home / 979,883,999.70-1,469,825,999.55-252,872,711.70

Finding the Fourth Proportional to 979,883,999.70, 1,469,825,999.55 and 252,872,711.70

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Solution

The fourth proportional to 979,883,999.70, 1,469,825,999.55 and 252,872,711.70 is: 379,309,067.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,883,999.70 : 1,469,825,999.55 = 252,872,711.70 : x
  2. Step 2: Convert to fraction form
    979,883,999.70/1,469,825,999.55 = 252,872,711.70/x
  3. Step 3: Cross multiply
    979,883,999.70x = 1,469,825,999.55 × 252,872,711.70
  4. Step 4: Simplify right side
    979,883,999.70x = 371,678,886,233,371,456
  5. Step 5: Solve for x
    x = 371,678,886,233,371,456/979,883,999.70
  6. Step 6: Final answer
    x = 379,309,067.55

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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.