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Finding the Third Proportional to 81,210,807 and 169,113,793

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Solution

The third proportional to 81,210,807 and 169,113,793 is: 352,163,413.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,210,807 : 169,113,793 = 169,113,793 : x
  2. Step 2: Convert to fraction form
    81,210,807/169,113,793 = 169,113,793/x
  3. Step 3: Cross multiply
    81,210,807x = 169,113,793 × 169,113,793
  4. Step 4: Simplify right side
    81,210,807x = 28,599,474,982,846,848
  5. Step 5: Solve for x
    x = 28,599,474,982,846,848/81,210,807
  6. Step 6: Final answer
    x = 352,163,413.21

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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.