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Finding the Third Proportional to 8,454,782 and 18,845,910

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Solution

The third proportional to 8,454,782 and 18,845,910 is: 42,007,981.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454,782 : 18,845,910 = 18,845,910 : x
  2. Step 2: Convert to fraction form
    8,454,782/18,845,910 = 18,845,910/x
  3. Step 3: Cross multiply
    8,454,782x = 18,845,910 × 18,845,910
  4. Step 4: Simplify right side
    8,454,782x = 355,168,323,728,100
  5. Step 5: Solve for x
    x = 355,168,323,728,100/8,454,782
  6. Step 6: Final answer
    x = 42,007,981.25

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.