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Finding the Third Proportional to 7,878,855 and 16,934,691

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Solution

The third proportional to 7,878,855 and 16,934,691 is: 36,399,167.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878,855 : 16,934,691 = 16,934,691 : x
  2. Step 2: Convert to fraction form
    7,878,855/16,934,691 = 16,934,691/x
  3. Step 3: Cross multiply
    7,878,855x = 16,934,691 × 16,934,691
  4. Step 4: Simplify right side
    7,878,855x = 286,783,759,265,481
  5. Step 5: Solve for x
    x = 286,783,759,265,481/7,878,855
  6. Step 6: Final answer
    x = 36,399,167.04

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.