Home / 685,682,822.08-1,028,796,762.48-219,416,087.44

Finding the Fourth Proportional to 685,682,822.08, 1,028,796,762.48 and 219,416,087.44

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Solution

The fourth proportional to 685,682,822.08, 1,028,796,762.48 and 219,416,087.44 is: 329,211,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,682,822.08 : 1,028,796,762.48 = 219,416,087.44 : x
  2. Step 2: Convert to fraction form
    685,682,822.08/1,028,796,762.48 = 219,416,087.44/x
  3. Step 3: Cross multiply
    685,682,822.08x = 1,028,796,762.48 × 219,416,087.44
  4. Step 4: Simplify right side
    685,682,822.08x = 225,734,560,394,300,608
  5. Step 5: Solve for x
    x = 225,734,560,394,300,608/685,682,822.08
  6. Step 6: Final answer
    x = 329,211,339.60

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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.