Home / 75,245,321.57-112,825,292.11-68,825,689.25

Finding the Fourth Proportional to 75,245,321.57, 112,825,292.11 and 68,825,689.25

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Solution

The fourth proportional to 75,245,321.57, 112,825,292.11 and 68,825,689.25 is: 103,199,485.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,245,321.57 : 112,825,292.11 = 68,825,689.25 : x
  2. Step 2: Convert to fraction form
    75,245,321.57/112,825,292.11 = 68,825,689.25/x
  3. Step 3: Cross multiply
    75,245,321.57x = 112,825,292.11 × 68,825,689.25
  4. Step 4: Simplify right side
    75,245,321.57x = 7,765,278,493,567,147
  5. Step 5: Solve for x
    x = 7,765,278,493,567,147/75,245,321.57
  6. Step 6: Final answer
    x = 103,199,485.79

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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.