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Finding the Third Proportional to 30,715,960 and 66,358,016

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Solution

The third proportional to 30,715,960 and 66,358,016 is: 143,358,250.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,715,960 : 66,358,016 = 66,358,016 : x
  2. Step 2: Convert to fraction form
    30,715,960/66,358,016 = 66,358,016/x
  3. Step 3: Cross multiply
    30,715,960x = 66,358,016 × 66,358,016
  4. Step 4: Simplify right side
    30,715,960x = 4,403,386,287,456,256
  5. Step 5: Solve for x
    x = 4,403,386,287,456,256/30,715,960
  6. Step 6: Final answer
    x = 143,358,250.48

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Why These Related Problems?

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