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Finding the Third Proportional to 177,973,978 and 275,428,887

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Solution

The third proportional to 177,973,978 and 275,428,887 is: 426,248,110.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,973,978 : 275,428,887 = 275,428,887 : x
  2. Step 2: Convert to fraction form
    177,973,978/275,428,887 = 275,428,887/x
  3. Step 3: Cross multiply
    177,973,978x = 275,428,887 × 275,428,887
  4. Step 4: Simplify right side
    177,973,978x = 75,861,071,794,058,768
  5. Step 5: Solve for x
    x = 75,861,071,794,058,768/177,973,978
  6. Step 6: Final answer
    x = 426,248,110.24

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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.