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Finding the Third Proportional to 8,218,955 and 13,089,509

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Solution

The third proportional to 8,218,955 and 13,089,509 is: 20,846,354.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218,955 : 13,089,509 = 13,089,509 : x
  2. Step 2: Convert to fraction form
    8,218,955/13,089,509 = 13,089,509/x
  3. Step 3: Cross multiply
    8,218,955x = 13,089,509 × 13,089,509
  4. Step 4: Simplify right side
    8,218,955x = 171,335,245,861,081
  5. Step 5: Solve for x
    x = 171,335,245,861,081/8,218,955
  6. Step 6: Final answer
    x = 20,846,354.05

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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.