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Finding the Third Proportional to 136,438,888 and 209,928,012

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Solution

The third proportional to 136,438,888 and 209,928,012 is: 323,000,068.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,438,888 : 209,928,012 = 209,928,012 : x
  2. Step 2: Convert to fraction form
    136,438,888/209,928,012 = 209,928,012/x
  3. Step 3: Cross multiply
    136,438,888x = 209,928,012 × 209,928,012
  4. Step 4: Simplify right side
    136,438,888x = 44,069,770,222,272,144
  5. Step 5: Solve for x
    x = 44,069,770,222,272,144/136,438,888
  6. Step 6: Final answer
    x = 323,000,068.88

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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.