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Finding the Third Proportional to 120,743,821.50 and 188,290,186.50

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Solution

The third proportional to 120,743,821.50 and 188,290,186.50 is: 293,623,258.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,743,821.50 : 188,290,186.50 = 188,290,186.50 : x
  2. Step 2: Convert to fraction form
    120,743,821.50/188,290,186.50 = 188,290,186.50/x
  3. Step 3: Cross multiply
    120,743,821.50x = 188,290,186.50 × 188,290,186.50
  4. Step 4: Simplify right side
    120,743,821.50x = 35,453,194,332,204,784
  5. Step 5: Solve for x
    x = 35,453,194,332,204,784/120,743,821.50
  6. Step 6: Final answer
    x = 293,623,258.66

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.