Home / 68,221,408.60-102,388,100.10-65,981,920.60

Finding the Fourth Proportional to 68,221,408.60, 102,388,100.10 and 65,981,920.60

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Solution

The fourth proportional to 68,221,408.60, 102,388,100.10 and 65,981,920.60 is: 99,027,030.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,221,408.60 : 102,388,100.10 = 65,981,920.60 : x
  2. Step 2: Convert to fraction form
    68,221,408.60/102,388,100.10 = 65,981,920.60/x
  3. Step 3: Cross multiply
    68,221,408.60x = 102,388,100.10 × 65,981,920.60
  4. Step 4: Simplify right side
    68,221,408.60x = 6,755,763,491,183,052
  5. Step 5: Solve for x
    x = 6,755,763,491,183,052/68,221,408.60
  6. Step 6: Final answer
    x = 99,027,030.22

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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.