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Finding the Third Proportional to 3,505,685 and 5,385,163

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Solution

The third proportional to 3,505,685 and 5,385,163 is: 8,272,272.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505,685 : 5,385,163 = 5,385,163 : x
  2. Step 2: Convert to fraction form
    3,505,685/5,385,163 = 5,385,163/x
  3. Step 3: Cross multiply
    3,505,685x = 5,385,163 × 5,385,163
  4. Step 4: Simplify right side
    3,505,685x = 28,999,980,536,569
  5. Step 5: Solve for x
    x = 28,999,980,536,569/3,505,685
  6. Step 6: Final answer
    x = 8,272,272.19

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.