Home / 3,991,942,121.16-5,510,576,359.39-2,487,311,866.51

Finding the Fourth Proportional to 3,991,942,121.16, 5,510,576,359.39 and 2,487,311,866.51

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Solution

The fourth proportional to 3,991,942,121.16, 5,510,576,359.39 and 2,487,311,866.51 is: 3,433,547,269.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,942,121.16 : 5,510,576,359.39 = 2,487,311,866.51 : x
  2. Step 2: Convert to fraction form
    3,991,942,121.16/5,510,576,359.39 = 2,487,311,866.51/x
  3. Step 3: Cross multiply
    3,991,942,121.16x = 5,510,576,359.39 × 2,487,311,866.51
  4. Step 4: Simplify right side
    3,991,942,121.16x = 13,706,521,970,004,207,616
  5. Step 5: Solve for x
    x = 13,706,521,970,004,207,616/3,991,942,121.16
  6. Step 6: Final answer
    x = 3,433,547,269.47

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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.