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Finding the Third Proportional to 8,638,274 and 19,998,149

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Solution

The third proportional to 8,638,274 and 19,998,149 is: 46,296,975.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638,274 : 19,998,149 = 19,998,149 : x
  2. Step 2: Convert to fraction form
    8,638,274/19,998,149 = 19,998,149/x
  3. Step 3: Cross multiply
    8,638,274x = 19,998,149 × 19,998,149
  4. Step 4: Simplify right side
    8,638,274x = 399,925,963,426,201
  5. Step 5: Solve for x
    x = 399,925,963,426,201/8,638,274
  6. Step 6: Final answer
    x = 46,296,975.93

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These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.