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Finding the Third Proportional to 4,003,911 and 8,637,678

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Solution

The third proportional to 4,003,911 and 8,637,678 is: 18,634,150.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,003,911 : 8,637,678 = 8,637,678 : x
  2. Step 2: Convert to fraction form
    4,003,911/8,637,678 = 8,637,678/x
  3. Step 3: Cross multiply
    4,003,911x = 8,637,678 × 8,637,678
  4. Step 4: Simplify right side
    4,003,911x = 74,609,481,231,684
  5. Step 5: Solve for x
    x = 74,609,481,231,684/4,003,911
  6. Step 6: Final answer
    x = 18,634,150.77

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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.