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Finding the Third Proportional to 155,237,256 and 315,036,192

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Solution

The third proportional to 155,237,256 and 315,036,192 is: 639,329,789.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,237,256 : 315,036,192 = 315,036,192 : x
  2. Step 2: Convert to fraction form
    155,237,256/315,036,192 = 315,036,192/x
  3. Step 3: Cross multiply
    155,237,256x = 315,036,192 × 315,036,192
  4. Step 4: Simplify right side
    155,237,256x = 99,247,802,269,860,864
  5. Step 5: Solve for x
    x = 99,247,802,269,860,864/155,237,256
  6. Step 6: Final answer
    x = 639,329,789.94

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.