Home / 71,882,003.70-107,823,005.55-28,782,138.60

Finding the Fourth Proportional to 71,882,003.70, 107,823,005.55 and 28,782,138.60

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Solution

The fourth proportional to 71,882,003.70, 107,823,005.55 and 28,782,138.60 is: 43,173,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,882,003.70 : 107,823,005.55 = 28,782,138.60 : x
  2. Step 2: Convert to fraction form
    71,882,003.70/107,823,005.55 = 28,782,138.60/x
  3. Step 3: Cross multiply
    71,882,003.70x = 107,823,005.55 × 28,782,138.60
  4. Step 4: Simplify right side
    71,882,003.70x = 3,103,376,690,008,669.50
  5. Step 5: Solve for x
    x = 3,103,376,690,008,669.50/71,882,003.70
  6. Step 6: Final answer
    x = 43,173,207.90

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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.