Home / 3,991,942,150.57-5,510,576,399.91-2,487,311,895.88

Finding the Fourth Proportional to 3,991,942,150.57, 5,510,576,399.91 and 2,487,311,895.88

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Solution

The fourth proportional to 3,991,942,150.57, 5,510,576,399.91 and 2,487,311,895.88 is: 3,433,547,309.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,942,150.57 : 5,510,576,399.91 = 2,487,311,895.88 : x
  2. Step 2: Convert to fraction form
    3,991,942,150.57/5,510,576,399.91 = 2,487,311,895.88/x
  3. Step 3: Cross multiply
    3,991,942,150.57x = 5,510,576,399.91 × 2,487,311,895.88
  4. Step 4: Simplify right side
    3,991,942,150.57x = 13,706,522,232,651,726,848
  5. Step 5: Solve for x
    x = 13,706,522,232,651,726,848/3,991,942,150.57
  6. Step 6: Final answer
    x = 3,433,547,309.97

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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.