Home / 19,989,965.46-29,986,778.08-5,612,936.28

Finding the Fourth Proportional to 19,989,965.46, 29,986,778.08 and 5,612,936.28

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Solution

The fourth proportional to 19,989,965.46, 29,986,778.08 and 5,612,936.28 is: 8,419,918.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989,965.46 : 29,986,778.08 = 5,612,936.28 : x
  2. Step 2: Convert to fraction form
    19,989,965.46/29,986,778.08 = 5,612,936.28/x
  3. Step 3: Cross multiply
    19,989,965.46x = 29,986,778.08 × 5,612,936.28
  4. Step 4: Simplify right side
    19,989,965.46x = 168,313,874,605,540.75
  5. Step 5: Solve for x
    x = 168,313,874,605,540.75/19,989,965.46
  6. Step 6: Final answer
    x = 8,419,918.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.