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Finding the Third Proportional to 72,722,225 and 156,981,968

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Solution

The third proportional to 72,722,225 and 156,981,968 is: 338,869,420.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,722,225 : 156,981,968 = 156,981,968 : x
  2. Step 2: Convert to fraction form
    72,722,225/156,981,968 = 156,981,968/x
  3. Step 3: Cross multiply
    72,722,225x = 156,981,968 × 156,981,968
  4. Step 4: Simplify right side
    72,722,225x = 24,643,338,277,153,024
  5. Step 5: Solve for x
    x = 24,643,338,277,153,024/72,722,225
  6. Step 6: Final answer
    x = 338,869,420.97

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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.