Home / 12,654,831,380.26-18,968,959,285.28-4,257,821,791.96

Finding the Fourth Proportional to 12,654,831,380.26, 18,968,959,285.28 and 4,257,821,791.96

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Solution

The fourth proportional to 12,654,831,380.26, 18,968,959,285.28 and 4,257,821,791.96 is: 6,382,261,903.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,654,831,380.26 : 18,968,959,285.28 = 4,257,821,791.96 : x
  2. Step 2: Convert to fraction form
    12,654,831,380.26/18,968,959,285.28 = 4,257,821,791.96/x
  3. Step 3: Cross multiply
    12,654,831,380.26x = 18,968,959,285.28 × 4,257,821,791.96
  4. Step 4: Simplify right side
    12,654,831,380.26x = 80,766,448,215,667,163,136
  5. Step 5: Solve for x
    x = 80,766,448,215,667,163,136/12,654,831,380.26
  6. Step 6: Final answer
    x = 6,382,261,903.68

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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.