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Finding the Third Proportional to 30,856,074 and 66,355,869

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Solution

The third proportional to 30,856,074 and 66,355,869 is: 142,698,042.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,856,074 : 66,355,869 = 66,355,869 : x
  2. Step 2: Convert to fraction form
    30,856,074/66,355,869 = 66,355,869/x
  3. Step 3: Cross multiply
    30,856,074x = 66,355,869 × 66,355,869
  4. Step 4: Simplify right side
    30,856,074x = 4,403,101,350,745,161
  5. Step 5: Solve for x
    x = 4,403,101,350,745,161/30,856,074
  6. Step 6: Final answer
    x = 142,698,042.23

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.