Home / 20,722,446.40-31,083,669.60-19,395,342.40

Finding the Fourth Proportional to 20,722,446.40, 31,083,669.60 and 19,395,342.40

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Solution

The fourth proportional to 20,722,446.40, 31,083,669.60 and 19,395,342.40 is: 29,093,013.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722,446.40 : 31,083,669.60 = 19,395,342.40 : x
  2. Step 2: Convert to fraction form
    20,722,446.40/31,083,669.60 = 19,395,342.40/x
  3. Step 3: Cross multiply
    20,722,446.40x = 31,083,669.60 × 19,395,342.40
  4. Step 4: Simplify right side
    20,722,446.40x = 602,878,414,940,471
  5. Step 5: Solve for x
    x = 602,878,414,940,471/20,722,446.40
  6. Step 6: Final answer
    x = 29,093,013.60

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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.