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Finding the Third Proportional to 155,306,265 and 247,242,189

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Solution

The third proportional to 155,306,265 and 247,242,189 is: 393,600,992.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,306,265 : 247,242,189 = 247,242,189 : x
  2. Step 2: Convert to fraction form
    155,306,265/247,242,189 = 247,242,189/x
  3. Step 3: Cross multiply
    155,306,265x = 247,242,189 × 247,242,189
  4. Step 4: Simplify right side
    155,306,265x = 61,128,700,021,511,720
  5. Step 5: Solve for x
    x = 61,128,700,021,511,720/155,306,265
  6. Step 6: Final answer
    x = 393,600,992.35

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.