Home / 558,400,635.82-770,568,020.42-320,074,964.15

Finding the Fourth Proportional to 558,400,635.82, 770,568,020.42 and 320,074,964.15

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Solution

The fourth proportional to 558,400,635.82, 770,568,020.42 and 320,074,964.15 is: 441,689,202.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,400,635.82 : 770,568,020.42 = 320,074,964.15 : x
  2. Step 2: Convert to fraction form
    558,400,635.82/770,568,020.42 = 320,074,964.15/x
  3. Step 3: Cross multiply
    558,400,635.82x = 770,568,020.42 × 320,074,964.15
  4. Step 4: Simplify right side
    558,400,635.82x = 246,639,531,511,067,936
  5. Step 5: Solve for x
    x = 246,639,531,511,067,936/558,400,635.82
  6. Step 6: Final answer
    x = 441,689,202.50

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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.