Home / 7,859,966.37-11,789,949.55-2,180,190.68

Finding the Fourth Proportional to 7,859,966.37, 11,789,949.55 and 2,180,190.68

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Solution

The fourth proportional to 7,859,966.37, 11,789,949.55 and 2,180,190.68 is: 3,270,286.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859,966.37 : 11,789,949.55 = 2,180,190.68 : x
  2. Step 2: Convert to fraction form
    7,859,966.37/11,789,949.55 = 2,180,190.68/x
  3. Step 3: Cross multiply
    7,859,966.37x = 11,789,949.55 × 2,180,190.68
  4. Step 4: Simplify right side
    7,859,966.37x = 25,704,338,126,580.20
  5. Step 5: Solve for x
    x = 25,704,338,126,580.20/7,859,966.37
  6. Step 6: Final answer
    x = 3,270,286.02

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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.