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Finding the Third Proportional to 8,472,672 and 12,930,702

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Solution

The third proportional to 8,472,672 and 12,930,702 is: 19,734,394.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472,672 : 12,930,702 = 12,930,702 : x
  2. Step 2: Convert to fraction form
    8,472,672/12,930,702 = 12,930,702/x
  3. Step 3: Cross multiply
    8,472,672x = 12,930,702 × 12,930,702
  4. Step 4: Simplify right side
    8,472,672x = 167,203,054,212,804
  5. Step 5: Solve for x
    x = 167,203,054,212,804/8,472,672
  6. Step 6: Final answer
    x = 19,734,394.79

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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.