Home / 19,989,961.33-29,986,771.89-5,612,932.15

Finding the Fourth Proportional to 19,989,961.33, 29,986,771.89 and 5,612,932.15

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Solution

The fourth proportional to 19,989,961.33, 29,986,771.89 and 5,612,932.15 is: 8,419,912.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989,961.33 : 29,986,771.89 = 5,612,932.15 : x
  2. Step 2: Convert to fraction form
    19,989,961.33/29,986,771.89 = 5,612,932.15/x
  3. Step 3: Cross multiply
    19,989,961.33x = 29,986,771.89 × 5,612,932.15
  4. Step 4: Simplify right side
    19,989,961.33x = 168,313,716,016,097.28
  5. Step 5: Solve for x
    x = 168,313,716,016,097.28/19,989,961.33
  6. Step 6: Final answer
    x = 8,419,912.04

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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.