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Finding the Third Proportional to 85,291,920 and 121,558,104

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Solution

The third proportional to 85,291,920 and 121,558,104 is: 173,244,694.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,291,920 : 121,558,104 = 121,558,104 : x
  2. Step 2: Convert to fraction form
    85,291,920/121,558,104 = 121,558,104/x
  3. Step 3: Cross multiply
    85,291,920x = 121,558,104 × 121,558,104
  4. Step 4: Simplify right side
    85,291,920x = 14,776,372,648,074,816
  5. Step 5: Solve for x
    x = 14,776,372,648,074,816/85,291,920
  6. Step 6: Final answer
    x = 173,244,694.79

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.