Home / 99,681,716.70-149,522,575.05-86,244,788.70

Finding the Fourth Proportional to 99,681,716.70, 149,522,575.05 and 86,244,788.70

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Solution

The fourth proportional to 99,681,716.70, 149,522,575.05 and 86,244,788.70 is: 129,367,183.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,681,716.70 : 149,522,575.05 = 86,244,788.70 : x
  2. Step 2: Convert to fraction form
    99,681,716.70/149,522,575.05 = 86,244,788.70/x
  3. Step 3: Cross multiply
    99,681,716.70x = 149,522,575.05 × 86,244,788.70
  4. Step 4: Simplify right side
    99,681,716.70x = 12,895,542,891,067,144
  5. Step 5: Solve for x
    x = 12,895,542,891,067,144/99,681,716.70
  6. Step 6: Final answer
    x = 129,367,183.05

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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.