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Finding the Third Proportional to 8,685,888 and 12,769,344

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Solution

The third proportional to 8,685,888 and 12,769,344 is: 18,772,536.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685,888 : 12,769,344 = 12,769,344 : x
  2. Step 2: Convert to fraction form
    8,685,888/12,769,344 = 12,769,344/x
  3. Step 3: Cross multiply
    8,685,888x = 12,769,344 × 12,769,344
  4. Step 4: Simplify right side
    8,685,888x = 163,056,146,190,336
  5. Step 5: Solve for x
    x = 163,056,146,190,336/8,685,888
  6. Step 6: Final answer
    x = 18,772,536.12

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.