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Finding the Third Proportional to 8,402,718 and 18,387,852

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Solution

The third proportional to 8,402,718 and 18,387,852 is: 40,238,539.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,402,718 : 18,387,852 = 18,387,852 : x
  2. Step 2: Convert to fraction form
    8,402,718/18,387,852 = 18,387,852/x
  3. Step 3: Cross multiply
    8,402,718x = 18,387,852 × 18,387,852
  4. Step 4: Simplify right side
    8,402,718x = 338,113,101,173,904
  5. Step 5: Solve for x
    x = 338,113,101,173,904/8,402,718
  6. Step 6: Final answer
    x = 40,238,539.62

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.