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Finding the Third Proportional to 8,921,688 and 18,994,224

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Solution

The third proportional to 8,921,688 and 18,994,224 is: 40,438,596.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921,688 : 18,994,224 = 18,994,224 : x
  2. Step 2: Convert to fraction form
    8,921,688/18,994,224 = 18,994,224/x
  3. Step 3: Cross multiply
    8,921,688x = 18,994,224 × 18,994,224
  4. Step 4: Simplify right side
    8,921,688x = 360,780,545,362,176
  5. Step 5: Solve for x
    x = 360,780,545,362,176/8,921,688
  6. Step 6: Final answer
    x = 40,438,596.97

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.