Home / 2,161,396,391.27-2,982,729,571.47-1,171,321,808.27

Finding the Fourth Proportional to 2,161,396,391.27, 2,982,729,571.47 and 1,171,321,808.27

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Solution

The fourth proportional to 2,161,396,391.27, 2,982,729,571.47 and 1,171,321,808.27 is: 1,616,425,478.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161,396,391.27 : 2,982,729,571.47 = 1,171,321,808.27 : x
  2. Step 2: Convert to fraction form
    2,161,396,391.27/2,982,729,571.47 = 1,171,321,808.27/x
  3. Step 3: Cross multiply
    2,161,396,391.27x = 2,982,729,571.47 × 1,171,321,808.27
  4. Step 4: Simplify right side
    2,161,396,391.27x = 3,493,736,195,219,728,896
  5. Step 5: Solve for x
    x = 3,493,736,195,219,728,896/2,161,396,391.27
  6. Step 6: Final answer
    x = 1,616,425,478.15

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Double scale
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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.