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Finding the Third Proportional to 155,856,573 and 338,840,815.50

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Solution

The third proportional to 155,856,573 and 338,840,815.50 is: 736,658,685.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,856,573 : 338,840,815.50 = 338,840,815.50 : x
  2. Step 2: Convert to fraction form
    155,856,573/338,840,815.50 = 338,840,815.50/x
  3. Step 3: Cross multiply
    155,856,573x = 338,840,815.50 × 338,840,815.50
  4. Step 4: Simplify right side
    155,856,573x = 114,813,098,248,705,040
  5. Step 5: Solve for x
    x = 114,813,098,248,705,040/155,856,573
  6. Step 6: Final answer
    x = 736,658,685.86

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.