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Finding the Third Proportional to 18,839,838 and 40,566,468

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Solution

The third proportional to 18,839,838 and 40,566,468 is: 87,348,857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839,838 : 40,566,468 = 40,566,468 : x
  2. Step 2: Convert to fraction form
    18,839,838/40,566,468 = 40,566,468/x
  3. Step 3: Cross multiply
    18,839,838x = 40,566,468 × 40,566,468
  4. Step 4: Simplify right side
    18,839,838x = 1,645,638,325,995,024
  5. Step 5: Solve for x
    x = 1,645,638,325,995,024/18,839,838
  6. Step 6: Final answer
    x = 87,348,857.56

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.