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Finding the Third Proportional to 2,978,629.50 and 6,429,660

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Solution

The third proportional to 2,978,629.50 and 6,429,660 is: 13,879,043.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,978,629.50 : 6,429,660 = 6,429,660 : x
  2. Step 2: Convert to fraction form
    2,978,629.50/6,429,660 = 6,429,660/x
  3. Step 3: Cross multiply
    2,978,629.50x = 6,429,660 × 6,429,660
  4. Step 4: Simplify right side
    2,978,629.50x = 41,340,527,715,600
  5. Step 5: Solve for x
    x = 41,340,527,715,600/2,978,629.50
  6. Step 6: Final answer
    x = 13,879,043.27

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.