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Finding the Third Proportional to 8,348,421 and 12,770,907

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Solution

The third proportional to 8,348,421 and 12,770,907 is: 19,536,157.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348,421 : 12,770,907 = 12,770,907 : x
  2. Step 2: Convert to fraction form
    8,348,421/12,770,907 = 12,770,907/x
  3. Step 3: Cross multiply
    8,348,421x = 12,770,907 × 12,770,907
  4. Step 4: Simplify right side
    8,348,421x = 163,096,065,602,649
  5. Step 5: Solve for x
    x = 163,096,065,602,649/8,348,421
  6. Step 6: Final answer
    x = 19,536,157.27

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.