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Finding the Third Proportional to 8,651,420 and 18,670,716

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Solution

The third proportional to 8,651,420 and 18,670,716 is: 40,293,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651,420 : 18,670,716 = 18,670,716 : x
  2. Step 2: Convert to fraction form
    8,651,420/18,670,716 = 18,670,716/x
  3. Step 3: Cross multiply
    8,651,420x = 18,670,716 × 18,670,716
  4. Step 4: Simplify right side
    8,651,420x = 348,595,635,952,656
  5. Step 5: Solve for x
    x = 348,595,635,952,656/8,651,420
  6. Step 6: Final answer
    x = 40,293,458.87

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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.