Home / 21,057,939.56-31,586,825.90-6,682,128.42

Finding the Fourth Proportional to 21,057,939.56, 31,586,825.90 and 6,682,128.42

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Solution

The fourth proportional to 21,057,939.56, 31,586,825.90 and 6,682,128.42 is: 10,023,166.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,057,939.56 : 31,586,825.90 = 6,682,128.42 : x
  2. Step 2: Convert to fraction form
    21,057,939.56/31,586,825.90 = 6,682,128.42/x
  3. Step 3: Cross multiply
    21,057,939.56x = 31,586,825.90 × 6,682,128.42
  4. Step 4: Simplify right side
    21,057,939.56x = 211,067,227,043,982.06
  5. Step 5: Solve for x
    x = 211,067,227,043,982.06/21,057,939.56
  6. Step 6: Final answer
    x = 10,023,166.15

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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.