Home / 89,408,323.20-123,393,716.40-49,719,813.60

Finding the Fourth Proportional to 89,408,323.20, 123,393,716.40 and 49,719,813.60

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Solution

The fourth proportional to 89,408,323.20, 123,393,716.40 and 49,719,813.60 is: 68,619,031.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,408,323.20 : 123,393,716.40 = 49,719,813.60 : x
  2. Step 2: Convert to fraction form
    89,408,323.20/123,393,716.40 = 49,719,813.60/x
  3. Step 3: Cross multiply
    89,408,323.20x = 123,393,716.40 × 49,719,813.60
  4. Step 4: Simplify right side
    89,408,323.20x = 6,135,112,578,819,264
  5. Step 5: Solve for x
    x = 6,135,112,578,819,264/89,408,323.20
  6. Step 6: Final answer
    x = 68,619,031.87

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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.