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Finding the Third Proportional to 81,157,154 and 165,148,651

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Solution

The third proportional to 81,157,154 and 165,148,651 is: 336,064,974.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,157,154 : 165,148,651 = 165,148,651 : x
  2. Step 2: Convert to fraction form
    81,157,154/165,148,651 = 165,148,651/x
  3. Step 3: Cross multiply
    81,157,154x = 165,148,651 × 165,148,651
  4. Step 4: Simplify right side
    81,157,154x = 27,274,076,927,119,800
  5. Step 5: Solve for x
    x = 27,274,076,927,119,800/81,157,154
  6. Step 6: Final answer
    x = 336,064,974.96

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.