Home / 2,161,396,298.90-2,982,729,443.28-1,171,321,715.90

Finding the Fourth Proportional to 2,161,396,298.90, 2,982,729,443.28 and 1,171,321,715.90

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Solution

The fourth proportional to 2,161,396,298.90, 2,982,729,443.28 and 1,171,321,715.90 is: 1,616,425,350.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161,396,298.90 : 2,982,729,443.28 = 1,171,321,715.90 : x
  2. Step 2: Convert to fraction form
    2,161,396,298.90/2,982,729,443.28 = 1,171,321,715.90/x
  3. Step 3: Cross multiply
    2,161,396,298.90x = 2,982,729,443.28 × 1,171,321,715.90
  4. Step 4: Simplify right side
    2,161,396,298.90x = 3,493,735,769,568,181,760
  5. Step 5: Solve for x
    x = 3,493,735,769,568,181,760/2,161,396,298.90
  6. Step 6: Final answer
    x = 1,616,425,350.29

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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.