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Finding the Third Proportional to 8,513,445 and 18,916,458

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Solution

The third proportional to 8,513,445 and 18,916,458 is: 42,031,443.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,513,445 : 18,916,458 = 18,916,458 : x
  2. Step 2: Convert to fraction form
    8,513,445/18,916,458 = 18,916,458/x
  3. Step 3: Cross multiply
    8,513,445x = 18,916,458 × 18,916,458
  4. Step 4: Simplify right side
    8,513,445x = 357,832,383,265,764
  5. Step 5: Solve for x
    x = 357,832,383,265,764/8,513,445
  6. Step 6: Final answer
    x = 42,031,443.59

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.