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Finding the Third Proportional to 78,649,106 and 120,368,667

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Solution

The third proportional to 78,649,106 and 120,368,667 is: 184,218,444.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,649,106 : 120,368,667 = 120,368,667 : x
  2. Step 2: Convert to fraction form
    78,649,106/120,368,667 = 120,368,667/x
  3. Step 3: Cross multiply
    78,649,106x = 120,368,667 × 120,368,667
  4. Step 4: Simplify right side
    78,649,106x = 14,488,615,995,356,888
  5. Step 5: Solve for x
    x = 14,488,615,995,356,888/78,649,106
  6. Step 6: Final answer
    x = 184,218,444.84

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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.