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Finding the Fourth Proportional to 8,690,893.30, 11,950,892.53 and 7,542,974.58

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Solution

The fourth proportional to 8,690,893.30, 11,950,892.53 and 7,542,974.58 is: 10,372,383.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690,893.30 : 11,950,892.53 = 7,542,974.58 : x
  2. Step 2: Convert to fraction form
    8,690,893.30/11,950,892.53 = 7,542,974.58/x
  3. Step 3: Cross multiply
    8,690,893.30x = 11,950,892.53 × 7,542,974.58
  4. Step 4: Simplify right side
    8,690,893.30x = 90,145,278,562,101.89
  5. Step 5: Solve for x
    x = 90,145,278,562,101.89/8,690,893.30
  6. Step 6: Final answer
    x = 10,372,383.53

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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.