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Finding the Third Proportional to 30,611,821 and 66,604,309

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Solution

The third proportional to 30,611,821 and 66,604,309 is: 144,915,716.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611,821 : 66,604,309 = 66,604,309 : x
  2. Step 2: Convert to fraction form
    30,611,821/66,604,309 = 66,604,309/x
  3. Step 3: Cross multiply
    30,611,821x = 66,604,309 × 66,604,309
  4. Step 4: Simplify right side
    30,611,821x = 4,436,133,977,367,481
  5. Step 5: Solve for x
    x = 4,436,133,977,367,481/30,611,821
  6. Step 6: Final answer
    x = 144,915,716.62

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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.