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Finding the Third Proportional to 18,212,317 and 28,021,898

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Solution

The third proportional to 18,212,317 and 28,021,898 is: 43,115,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212,317 : 28,021,898 = 28,021,898 : x
  2. Step 2: Convert to fraction form
    18,212,317/28,021,898 = 28,021,898/x
  3. Step 3: Cross multiply
    18,212,317x = 28,021,898 × 28,021,898
  4. Step 4: Simplify right side
    18,212,317x = 785,226,767,522,404
  5. Step 5: Solve for x
    x = 785,226,767,522,404/18,212,317
  6. Step 6: Final answer
    x = 43,115,149.35

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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.