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Finding the Fourth Proportional to 11,216,662.80, 16,789,564.80 and 8,807,463.60

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Solution

The fourth proportional to 11,216,662.80, 16,789,564.80 and 8,807,463.60 is: 13,183,375.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216,662.80 : 16,789,564.80 = 8,807,463.60 : x
  2. Step 2: Convert to fraction form
    11,216,662.80/16,789,564.80 = 8,807,463.60/x
  3. Step 3: Cross multiply
    11,216,662.80x = 16,789,564.80 × 8,807,463.60
  4. Step 4: Simplify right side
    11,216,662.80x = 147,873,480,835,841.28
  5. Step 5: Solve for x
    x = 147,873,480,835,841.28/11,216,662.80
  6. Step 6: Final answer
    x = 13,183,375.79

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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.