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Finding the Fourth Proportional to 9,394,407.72, 12,964,601.79 and 8,963,940.51

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Solution

The fourth proportional to 9,394,407.72, 12,964,601.79 and 8,963,940.51 is: 12,370,542.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,394,407.72 : 12,964,601.79 = 8,963,940.51 : x
  2. Step 2: Convert to fraction form
    9,394,407.72/12,964,601.79 = 8,963,940.51/x
  3. Step 3: Cross multiply
    9,394,407.72x = 12,964,601.79 × 8,963,940.51
  4. Step 4: Simplify right side
    9,394,407.72x = 116,213,919,181,399.50
  5. Step 5: Solve for x
    x = 116,213,919,181,399.50/9,394,407.72
  6. Step 6: Final answer
    x = 12,370,542.42

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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.