Home / 3,991,942,122.16-5,510,576,360.77-2,487,311,867.51

Finding the Fourth Proportional to 3,991,942,122.16, 5,510,576,360.77 and 2,487,311,867.51

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Solution

The fourth proportional to 3,991,942,122.16, 5,510,576,360.77 and 2,487,311,867.51 is: 3,433,547,270.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,942,122.16 : 5,510,576,360.77 = 2,487,311,867.51 : x
  2. Step 2: Convert to fraction form
    3,991,942,122.16/5,510,576,360.77 = 2,487,311,867.51/x
  3. Step 3: Cross multiply
    3,991,942,122.16x = 5,510,576,360.77 × 2,487,311,867.51
  4. Step 4: Simplify right side
    3,991,942,122.16x = 13,706,521,978,963,290,112
  5. Step 5: Solve for x
    x = 13,706,521,978,963,290,112/3,991,942,122.16
  6. Step 6: Final answer
    x = 3,433,547,270.86

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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.