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Finding the Third Proportional to 8,218,939 and 13,089,485

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Solution

The third proportional to 8,218,939 and 13,089,485 is: 20,846,318.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218,939 : 13,089,485 = 13,089,485 : x
  2. Step 2: Convert to fraction form
    8,218,939/13,089,485 = 13,089,485/x
  3. Step 3: Cross multiply
    8,218,939x = 13,089,485 × 13,089,485
  4. Step 4: Simplify right side
    8,218,939x = 171,334,617,565,225
  5. Step 5: Solve for x
    x = 171,334,617,565,225/8,218,939
  6. Step 6: Final answer
    x = 20,846,318.19

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.