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Finding the Third Proportional to 42,389,580 and 91,274,439.75

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Solution

The third proportional to 42,389,580 and 91,274,439.75 is: 196,534,699.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,389,580 : 91,274,439.75 = 91,274,439.75 : x
  2. Step 2: Convert to fraction form
    42,389,580/91,274,439.75 = 91,274,439.75/x
  3. Step 3: Cross multiply
    42,389,580x = 91,274,439.75 × 91,274,439.75
  4. Step 4: Simplify right side
    42,389,580x = 8,331,023,351,676,380
  5. Step 5: Solve for x
    x = 8,331,023,351,676,380/42,389,580
  6. Step 6: Final answer
    x = 196,534,699.13

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.