Home / 2,161,396,468.92-2,982,729,678.48-1,171,321,885.92

Finding the Fourth Proportional to 2,161,396,468.92, 2,982,729,678.48 and 1,171,321,885.92

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Solution

The fourth proportional to 2,161,396,468.92, 2,982,729,678.48 and 1,171,321,885.92 is: 1,616,425,585.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161,396,468.92 : 2,982,729,678.48 = 1,171,321,885.92 : x
  2. Step 2: Convert to fraction form
    2,161,396,468.92/2,982,729,678.48 = 1,171,321,885.92/x
  3. Step 3: Cross multiply
    2,161,396,468.92x = 2,982,729,678.48 × 1,171,321,885.92
  4. Step 4: Simplify right side
    2,161,396,468.92x = 3,493,736,552,186,748,928
  5. Step 5: Solve for x
    x = 3,493,736,552,186,748,928/2,161,396,468.92
  6. Step 6: Final answer
    x = 1,616,425,585.23

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Double scale
Find fourth proportional to 2,161,396,469.92, 2,982,729,679.86 and 1,171,321,886.92
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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.