Home / 252,660,680.70-378,991,021.05-154,450,383.90

Finding the Fourth Proportional to 252,660,680.70, 378,991,021.05 and 154,450,383.90

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Solution

The fourth proportional to 252,660,680.70, 378,991,021.05 and 154,450,383.90 is: 231,675,575.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,660,680.70 : 378,991,021.05 = 154,450,383.90 : x
  2. Step 2: Convert to fraction form
    252,660,680.70/378,991,021.05 = 154,450,383.90/x
  3. Step 3: Cross multiply
    252,660,680.70x = 378,991,021.05 × 154,450,383.90
  4. Step 4: Simplify right side
    252,660,680.70x = 58,535,308,695,825,488
  5. Step 5: Solve for x
    x = 58,535,308,695,825,488/252,660,680.70
  6. Step 6: Final answer
    x = 231,675,575.85

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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.