Home / 557,083,481.70-768,782,171.07-306,215,263.20

Finding the Fourth Proportional to 557,083,481.70, 768,782,171.07 and 306,215,263.20

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Solution

The fourth proportional to 557,083,481.70, 768,782,171.07 and 306,215,263.20 is: 422,580,892.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,083,481.70 : 768,782,171.07 = 306,215,263.20 : x
  2. Step 2: Convert to fraction form
    557,083,481.70/768,782,171.07 = 306,215,263.20/x
  3. Step 3: Cross multiply
    557,083,481.70x = 768,782,171.07 × 306,215,263.20
  4. Step 4: Simplify right side
    557,083,481.70x = 235,412,834,857,667,488
  5. Step 5: Solve for x
    x = 235,412,834,857,667,488/557,083,481.70
  6. Step 6: Final answer
    x = 422,580,892.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.