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Finding the Third Proportional to 78,554,950,095 and 172,318,543,086

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Solution

The third proportional to 78,554,950,095 and 172,318,543,086 is: 377,998,843,553.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,554,950,095 : 172,318,543,086 = 172,318,543,086 : x
  2. Step 2: Convert to fraction form
    78,554,950,095/172,318,543,086 = 172,318,543,086/x
  3. Step 3: Cross multiply
    78,554,950,095x = 172,318,543,086 × 172,318,543,086
  4. Step 4: Simplify right side
    78,554,950,095x = 29,693,680,291,281,639,571,456
  5. Step 5: Solve for x
    x = 29,693,680,291,281,639,571,456/78,554,950,095
  6. Step 6: Final answer
    x = 377,998,843,553.10

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.