Home / 80,380,830.72-120,459,545.04-41,965,716.45

Finding the Fourth Proportional to 80,380,830.72, 120,459,545.04 and 41,965,716.45

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Solution

The fourth proportional to 80,380,830.72, 120,459,545.04 and 41,965,716.45 is: 62,890,257.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,380,830.72 : 120,459,545.04 = 41,965,716.45 : x
  2. Step 2: Convert to fraction form
    80,380,830.72/120,459,545.04 = 41,965,716.45/x
  3. Step 3: Cross multiply
    80,380,830.72x = 120,459,545.04 × 41,965,716.45
  4. Step 4: Simplify right side
    80,380,830.72x = 5,055,171,110,844,645
  5. Step 5: Solve for x
    x = 5,055,171,110,844,645/80,380,830.72
  6. Step 6: Final answer
    x = 62,890,257.11

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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.