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Finding the Third Proportional to 3,388,979.57 and 7,450,477.77

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Solution

The third proportional to 3,388,979.57 and 7,450,477.77 is: 16,379,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388,979.57 : 7,450,477.77 = 7,450,477.77 : x
  2. Step 2: Convert to fraction form
    3,388,979.57/7,450,477.77 = 7,450,477.77/x
  3. Step 3: Cross multiply
    3,388,979.57x = 7,450,477.77 × 7,450,477.77
  4. Step 4: Simplify right side
    3,388,979.57x = 55,509,618,994,278.60
  5. Step 5: Solve for x
    x = 55,509,618,994,278.60/3,388,979.57
  6. Step 6: Final answer
    x = 16,379,449.30

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.