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Finding the Fourth Proportional to 8,447,840.96, 12,651,093.92 and 7,629,028.52

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Solution

The fourth proportional to 8,447,840.96, 12,651,093.92 and 7,629,028.52 is: 11,424,878.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447,840.96 : 12,651,093.92 = 7,629,028.52 : x
  2. Step 2: Convert to fraction form
    8,447,840.96/12,651,093.92 = 7,629,028.52/x
  3. Step 3: Cross multiply
    8,447,840.96x = 12,651,093.92 × 7,629,028.52
  4. Step 4: Simplify right side
    8,447,840.96x = 96,515,556,280,695.69
  5. Step 5: Solve for x
    x = 96,515,556,280,695.69/8,447,840.96
  6. Step 6: Final answer
    x = 11,424,878.47

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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.