Home / 5,228,815.82-7,215,940.86-2,905,806.26

Finding the Fourth Proportional to 5,228,815.82, 7,215,940.86 and 2,905,806.26

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Solution

The fourth proportional to 5,228,815.82, 7,215,940.86 and 2,905,806.26 is: 4,010,109.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228,815.82 : 7,215,940.86 = 2,905,806.26 : x
  2. Step 2: Convert to fraction form
    5,228,815.82/7,215,940.86 = 2,905,806.26/x
  3. Step 3: Cross multiply
    5,228,815.82x = 7,215,940.86 × 2,905,806.26
  4. Step 4: Simplify right side
    5,228,815.82x = 20,968,126,122,777.78
  5. Step 5: Solve for x
    x = 20,968,126,122,777.78/5,228,815.82
  6. Step 6: Final answer
    x = 4,010,109.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.