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Finding the Third Proportional to 30,659,868 and 66,762,936

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Solution

The third proportional to 30,659,868 and 66,762,936 is: 145,378,630.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,659,868 : 66,762,936 = 66,762,936 : x
  2. Step 2: Convert to fraction form
    30,659,868/66,762,936 = 66,762,936/x
  3. Step 3: Cross multiply
    30,659,868x = 66,762,936 × 66,762,936
  4. Step 4: Simplify right side
    30,659,868x = 4,457,289,623,340,096
  5. Step 5: Solve for x
    x = 4,457,289,623,340,096/30,659,868
  6. Step 6: Final answer
    x = 145,378,630.57

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.