Home / 5,180,620.45-7,770,930.68-3,920,908.45

Finding the Fourth Proportional to 5,180,620.45, 7,770,930.68 and 3,920,908.45

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Solution

The fourth proportional to 5,180,620.45, 7,770,930.68 and 3,920,908.45 is: 5,881,362.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180,620.45 : 7,770,930.68 = 3,920,908.45 : x
  2. Step 2: Convert to fraction form
    5,180,620.45/7,770,930.68 = 3,920,908.45/x
  3. Step 3: Cross multiply
    5,180,620.45x = 7,770,930.68 × 3,920,908.45
  4. Step 4: Simplify right side
    5,180,620.45x = 30,469,107,747,971.70
  5. Step 5: Solve for x
    x = 30,469,107,747,971.70/5,180,620.45
  6. Step 6: Final answer
    x = 5,881,362.68

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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.