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Finding the Third Proportional to 72,813,330 and 156,432,366

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Solution

The third proportional to 72,813,330 and 156,432,366 is: 336,079,741.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,813,330 : 156,432,366 = 156,432,366 : x
  2. Step 2: Convert to fraction form
    72,813,330/156,432,366 = 156,432,366/x
  3. Step 3: Cross multiply
    72,813,330x = 156,432,366 × 156,432,366
  4. Step 4: Simplify right side
    72,813,330x = 24,471,085,132,357,956
  5. Step 5: Solve for x
    x = 24,471,085,132,357,956/72,813,330
  6. Step 6: Final answer
    x = 336,079,741.61

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.