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Finding the Third Proportional to 68,317,990.88 and 147,522,138

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Solution

The third proportional to 68,317,990.88 and 147,522,138 is: 318,551,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,317,990.88 : 147,522,138 = 147,522,138 : x
  2. Step 2: Convert to fraction form
    68,317,990.88/147,522,138 = 147,522,138/x
  3. Step 3: Cross multiply
    68,317,990.88x = 147,522,138 × 147,522,138
  4. Step 4: Simplify right side
    68,317,990.88x = 21,762,781,200,091,044
  5. Step 5: Solve for x
    x = 21,762,781,200,091,044/68,317,990.88
  6. Step 6: Final answer
    x = 318,551,247.21

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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.