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Finding the Third Proportional to 109,466,978 and 236,289,988

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Solution

The third proportional to 109,466,978 and 236,289,988 is: 510,043,845.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,466,978 : 236,289,988 = 236,289,988 : x
  2. Step 2: Convert to fraction form
    109,466,978/236,289,988 = 236,289,988/x
  3. Step 3: Cross multiply
    109,466,978x = 236,289,988 × 236,289,988
  4. Step 4: Simplify right side
    109,466,978x = 55,832,958,429,040,144
  5. Step 5: Solve for x
    x = 55,832,958,429,040,144/109,466,978
  6. Step 6: Final answer
    x = 510,043,845.63

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These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.