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Finding the Third Proportional to 8,708,840 and 18,455,930

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Solution

The third proportional to 8,708,840 and 18,455,930 is: 39,112,138.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708,840 : 18,455,930 = 18,455,930 : x
  2. Step 2: Convert to fraction form
    8,708,840/18,455,930 = 18,455,930/x
  3. Step 3: Cross multiply
    8,708,840x = 18,455,930 × 18,455,930
  4. Step 4: Simplify right side
    8,708,840x = 340,621,352,164,900
  5. Step 5: Solve for x
    x = 340,621,352,164,900/8,708,840
  6. Step 6: Final answer
    x = 39,112,138.03

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.