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Finding the Third Proportional to 79,439,848 and 171,420,190

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Solution

The third proportional to 79,439,848 and 171,420,190 is: 369,901,029.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,439,848 : 171,420,190 = 171,420,190 : x
  2. Step 2: Convert to fraction form
    79,439,848/171,420,190 = 171,420,190/x
  3. Step 3: Cross multiply
    79,439,848x = 171,420,190 × 171,420,190
  4. Step 4: Simplify right side
    79,439,848x = 29,384,881,539,636,100
  5. Step 5: Solve for x
    x = 29,384,881,539,636,100/79,439,848
  6. Step 6: Final answer
    x = 369,901,029.26

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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.