Home / 75,245,322.57-112,825,293.61-68,825,690.25

Finding the Fourth Proportional to 75,245,322.57, 112,825,293.61 and 68,825,690.25

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Solution

The fourth proportional to 75,245,322.57, 112,825,293.61 and 68,825,690.25 is: 103,199,487.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,245,322.57 : 112,825,293.61 = 68,825,690.25 : x
  2. Step 2: Convert to fraction form
    75,245,322.57/112,825,293.61 = 68,825,690.25/x
  3. Step 3: Cross multiply
    75,245,322.57x = 112,825,293.61 × 68,825,690.25
  4. Step 4: Simplify right side
    75,245,322.57x = 7,765,278,710,367,164
  5. Step 5: Solve for x
    x = 7,765,278,710,367,164/75,245,322.57
  6. Step 6: Final answer
    x = 103,199,487.29

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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.