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Finding the Third Proportional to 30,658,858 and 66,760,916

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Solution

The third proportional to 30,658,858 and 66,760,916 is: 145,374,622.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,658,858 : 66,760,916 = 66,760,916 : x
  2. Step 2: Convert to fraction form
    30,658,858/66,760,916 = 66,760,916/x
  3. Step 3: Cross multiply
    30,658,858x = 66,760,916 × 66,760,916
  4. Step 4: Simplify right side
    30,658,858x = 4,457,019,905,159,056
  5. Step 5: Solve for x
    x = 4,457,019,905,159,056/30,658,858
  6. Step 6: Final answer
    x = 145,374,622.41

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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.