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Finding the Third Proportional to 8,418,886 and 18,184,963

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Solution

The third proportional to 8,418,886 and 18,184,963 is: 39,279,885.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418,886 : 18,184,963 = 18,184,963 : x
  2. Step 2: Convert to fraction form
    8,418,886/18,184,963 = 18,184,963/x
  3. Step 3: Cross multiply
    8,418,886x = 18,184,963 × 18,184,963
  4. Step 4: Simplify right side
    8,418,886x = 330,692,879,311,369
  5. Step 5: Solve for x
    x = 330,692,879,311,369/8,418,886
  6. Step 6: Final answer
    x = 39,279,885.64

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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.