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Finding the Third Proportional to 179,752,878 and 387,273,640

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Solution

The third proportional to 179,752,878 and 387,273,640 is: 834,372,578.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,752,878 : 387,273,640 = 387,273,640 : x
  2. Step 2: Convert to fraction form
    179,752,878/387,273,640 = 387,273,640/x
  3. Step 3: Cross multiply
    179,752,878x = 387,273,640 × 387,273,640
  4. Step 4: Simplify right side
    179,752,878x = 149,980,872,238,849,600
  5. Step 5: Solve for x
    x = 149,980,872,238,849,600/179,752,878
  6. Step 6: Final answer
    x = 834,372,578.11

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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.