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Finding the Third Proportional to 68,877,618 and 151,189,968

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Solution

The third proportional to 68,877,618 and 151,189,968 is: 331,869,874.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,877,618 : 151,189,968 = 151,189,968 : x
  2. Step 2: Convert to fraction form
    68,877,618/151,189,968 = 151,189,968/x
  3. Step 3: Cross multiply
    68,877,618x = 151,189,968 × 151,189,968
  4. Step 4: Simplify right side
    68,877,618x = 22,858,406,423,841,024
  5. Step 5: Solve for x
    x = 22,858,406,423,841,024/68,877,618
  6. Step 6: Final answer
    x = 331,869,874.24

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.