Home / 81,147,188,112.78-111,936,594,057.72-50,610,356,022.45

Finding the Fourth Proportional to 81,147,188,112.78, 111,936,594,057.72 and 50,610,356,022.45

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Solution

The fourth proportional to 81,147,188,112.78, 111,936,594,057.72 and 50,610,356,022.45 is: 69,813,273,989.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,147,188,112.78 : 111,936,594,057.72 = 50,610,356,022.45 : x
  2. Step 2: Convert to fraction form
    81,147,188,112.78/111,936,594,057.72 = 50,610,356,022.45/x
  3. Step 3: Cross multiply
    81,147,188,112.78x = 111,936,594,057.72 × 50,610,356,022.45
  4. Step 4: Simplify right side
    81,147,188,112.78x = 5,665,150,877,201,446,469,632
  5. Step 5: Solve for x
    x = 5,665,150,877,201,446,469,632/81,147,188,112.78
  6. Step 6: Final answer
    x = 69,813,273,989.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.