Home / 392,203,115.80-587,029,215.30-305,471,944.60

Finding the Fourth Proportional to 392,203,115.80, 587,029,215.30 and 305,471,944.60

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Solution

The fourth proportional to 392,203,115.80, 587,029,215.30 and 305,471,944.60 is: 457,214,511.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,203,115.80 : 587,029,215.30 = 305,471,944.60 : x
  2. Step 2: Convert to fraction form
    392,203,115.80/587,029,215.30 = 305,471,944.60/x
  3. Step 3: Cross multiply
    392,203,115.80x = 587,029,215.30 × 305,471,944.60
  4. Step 4: Simplify right side
    392,203,115.80x = 179,320,955,934,703,072
  5. Step 5: Solve for x
    x = 179,320,955,934,703,072/392,203,115.80
  6. Step 6: Final answer
    x = 457,214,511.34

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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.