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Finding the Third Proportional to 66,612,251 and 99,918,367

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Solution

The third proportional to 66,612,251 and 99,918,367 is: 149,877,536.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,612,251 : 99,918,367 = 99,918,367 : x
  2. Step 2: Convert to fraction form
    66,612,251/99,918,367 = 99,918,367/x
  3. Step 3: Cross multiply
    66,612,251x = 99,918,367 × 99,918,367
  4. Step 4: Simplify right side
    66,612,251x = 9,983,680,063,946,688
  5. Step 5: Solve for x
    x = 9,983,680,063,946,688/66,612,251
  6. Step 6: Final answer
    x = 149,877,536.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.