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Finding the Third Proportional to 8,516,411 and 18,681,623

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Solution

The third proportional to 8,516,411 and 18,681,623 is: 40,980,060.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516,411 : 18,681,623 = 18,681,623 : x
  2. Step 2: Convert to fraction form
    8,516,411/18,681,623 = 18,681,623/x
  3. Step 3: Cross multiply
    8,516,411x = 18,681,623 × 18,681,623
  4. Step 4: Simplify right side
    8,516,411x = 349,003,037,914,129
  5. Step 5: Solve for x
    x = 349,003,037,914,129/8,516,411
  6. Step 6: Final answer
    x = 40,980,060.49

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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.