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Finding the Third Proportional to 8,415,702 and 18,406,043

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Solution

The third proportional to 8,415,702 and 18,406,043 is: 40,255,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415,702 : 18,406,043 = 18,406,043 : x
  2. Step 2: Convert to fraction form
    8,415,702/18,406,043 = 18,406,043/x
  3. Step 3: Cross multiply
    8,415,702x = 18,406,043 × 18,406,043
  4. Step 4: Simplify right side
    8,415,702x = 338,782,418,917,849
  5. Step 5: Solve for x
    x = 338,782,418,917,849/8,415,702
  6. Step 6: Final answer
    x = 40,255,990.40

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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.