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Finding the Third Proportional to 30,684,432 and 66,151,068

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Solution

The third proportional to 30,684,432 and 66,151,068 is: 142,611,855.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,684,432 : 66,151,068 = 66,151,068 : x
  2. Step 2: Convert to fraction form
    30,684,432/66,151,068 = 66,151,068/x
  3. Step 3: Cross multiply
    30,684,432x = 66,151,068 × 66,151,068
  4. Step 4: Simplify right side
    30,684,432x = 4,375,963,797,540,624
  5. Step 5: Solve for x
    x = 4,375,963,797,540,624/30,684,432
  6. Step 6: Final answer
    x = 142,611,855.99

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.