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Finding the Third Proportional to 179,858,659 and 391,388,199

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Solution

The third proportional to 179,858,659 and 391,388,199 is: 851,695,009.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,858,659 : 391,388,199 = 391,388,199 : x
  2. Step 2: Convert to fraction form
    179,858,659/391,388,199 = 391,388,199/x
  3. Step 3: Cross multiply
    179,858,659x = 391,388,199 × 391,388,199
  4. Step 4: Simplify right side
    179,858,659x = 153,184,722,316,463,616
  5. Step 5: Solve for x
    x = 153,184,722,316,463,616/179,858,659
  6. Step 6: Final answer
    x = 851,695,009.67

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.