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Finding the Third Proportional to 68,883,640 and 148,725,178

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Solution

The third proportional to 68,883,640 and 148,725,178 is: 321,109,316.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,883,640 : 148,725,178 = 148,725,178 : x
  2. Step 2: Convert to fraction form
    68,883,640/148,725,178 = 148,725,178/x
  3. Step 3: Cross multiply
    68,883,640x = 148,725,178 × 148,725,178
  4. Step 4: Simplify right side
    68,883,640x = 22,119,178,571,131,684
  5. Step 5: Solve for x
    x = 22,119,178,571,131,684/68,883,640
  6. Step 6: Final answer
    x = 321,109,316.68

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.