Home / 89,408,800.90-134,006,913.15-80,268,015.70

Finding the Fourth Proportional to 89,408,800.90, 134,006,913.15 and 80,268,015.70

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Solution

The fourth proportional to 89,408,800.90, 134,006,913.15 and 80,268,015.70 is: 120,306,601.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,408,800.90 : 134,006,913.15 = 80,268,015.70 : x
  2. Step 2: Convert to fraction form
    89,408,800.90/134,006,913.15 = 80,268,015.70/x
  3. Step 3: Cross multiply
    89,408,800.90x = 134,006,913.15 × 80,268,015.70
  4. Step 4: Simplify right side
    89,408,800.90x = 10,756,469,008,632,738
  5. Step 5: Solve for x
    x = 10,756,469,008,632,738/89,408,800.90
  6. Step 6: Final answer
    x = 120,306,601.81

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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.