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Finding the Third Proportional to 3,508,989 and 5,289,405

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Solution

The third proportional to 3,508,989 and 5,289,405 is: 7,973,181.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508,989 : 5,289,405 = 5,289,405 : x
  2. Step 2: Convert to fraction form
    3,508,989/5,289,405 = 5,289,405/x
  3. Step 3: Cross multiply
    3,508,989x = 5,289,405 × 5,289,405
  4. Step 4: Simplify right side
    3,508,989x = 27,977,805,254,025
  5. Step 5: Solve for x
    x = 27,977,805,254,025/3,508,989
  6. Step 6: Final answer
    x = 7,973,181.24

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.