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Finding the Third Proportional to 84,287,978 and 183,890,698

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Solution

The third proportional to 84,287,978 and 183,890,698 is: 401,193,498.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,287,978 : 183,890,698 = 183,890,698 : x
  2. Step 2: Convert to fraction form
    84,287,978/183,890,698 = 183,890,698/x
  3. Step 3: Cross multiply
    84,287,978x = 183,890,698 × 183,890,698
  4. Step 4: Simplify right side
    84,287,978x = 33,815,788,810,927,204
  5. Step 5: Solve for x
    x = 33,815,788,810,927,204/84,287,978
  6. Step 6: Final answer
    x = 401,193,498.92

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.