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Finding the Third Proportional to 3,969,455.63 and 8,611,048.69

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Solution

The third proportional to 3,969,455.63 and 8,611,048.69 is: 18,680,183.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969,455.63 : 8,611,048.69 = 8,611,048.69 : x
  2. Step 2: Convert to fraction form
    3,969,455.63/8,611,048.69 = 8,611,048.69/x
  3. Step 3: Cross multiply
    3,969,455.63x = 8,611,048.69 × 8,611,048.69
  4. Step 4: Simplify right side
    3,969,455.63x = 74,150,159,498,495.47
  5. Step 5: Solve for x
    x = 74,150,159,498,495.47/3,969,455.63
  6. Step 6: Final answer
    x = 18,680,183.51

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.