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Finding the Third Proportional to 64,166,920 and 133,621,520

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Solution

The third proportional to 64,166,920 and 133,621,520 is: 278,254,131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,166,920 : 133,621,520 = 133,621,520 : x
  2. Step 2: Convert to fraction form
    64,166,920/133,621,520 = 133,621,520/x
  3. Step 3: Cross multiply
    64,166,920x = 133,621,520 × 133,621,520
  4. Step 4: Simplify right side
    64,166,920x = 17,854,710,607,110,400
  5. Step 5: Solve for x
    x = 17,854,710,607,110,400/64,166,920
  6. Step 6: Final answer
    x = 278,254,131.68

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.