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Finding the Third Proportional to 8,666,838 and 18,453,420

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Solution

The third proportional to 8,666,838 and 18,453,420 is: 39,290,997.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666,838 : 18,453,420 = 18,453,420 : x
  2. Step 2: Convert to fraction form
    8,666,838/18,453,420 = 18,453,420/x
  3. Step 3: Cross multiply
    8,666,838x = 18,453,420 × 18,453,420
  4. Step 4: Simplify right side
    8,666,838x = 340,528,709,696,400
  5. Step 5: Solve for x
    x = 340,528,709,696,400/8,666,838
  6. Step 6: Final answer
    x = 39,290,997.44

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.