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Finding the Third Proportional to 63,809,920 and 140,379,392

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Solution

The third proportional to 63,809,920 and 140,379,392 is: 308,829,312.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,809,920 : 140,379,392 = 140,379,392 : x
  2. Step 2: Convert to fraction form
    63,809,920/140,379,392 = 140,379,392/x
  3. Step 3: Cross multiply
    63,809,920x = 140,379,392 × 140,379,392
  4. Step 4: Simplify right side
    63,809,920x = 19,706,373,698,289,664
  5. Step 5: Solve for x
    x = 19,706,373,698,289,664/63,809,920
  6. Step 6: Final answer
    x = 308,829,312.09

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.