Home / 21,008,105.40-31,476,728.70-17,394,306.60

Finding the Fourth Proportional to 21,008,105.40, 31,476,728.70 and 17,394,306.60

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Solution

The fourth proportional to 21,008,105.40, 31,476,728.70 and 17,394,306.60 is: 26,062,125.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,105.40 : 31,476,728.70 = 17,394,306.60 : x
  2. Step 2: Convert to fraction form
    21,008,105.40/31,476,728.70 = 17,394,306.60/x
  3. Step 3: Cross multiply
    21,008,105.40x = 31,476,728.70 × 17,394,306.60
  4. Step 4: Simplify right side
    21,008,105.40x = 547,515,869,772,819.44
  5. Step 5: Solve for x
    x = 547,515,869,772,819.44/21,008,105.40
  6. Step 6: Final answer
    x = 26,062,125.04

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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.