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Finding the Third Proportional to 72,709,789 and 159,101,467

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Solution

The third proportional to 72,709,789 and 159,101,467 is: 348,141,249.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,709,789 : 159,101,467 = 159,101,467 : x
  2. Step 2: Convert to fraction form
    72,709,789/159,101,467 = 159,101,467/x
  3. Step 3: Cross multiply
    72,709,789x = 159,101,467 × 159,101,467
  4. Step 4: Simplify right side
    72,709,789x = 25,313,276,801,552,088
  5. Step 5: Solve for x
    x = 25,313,276,801,552,088/72,709,789
  6. Step 6: Final answer
    x = 348,141,249.61

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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.