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Finding the Third Proportional to 87,668,823 and 139,621,347

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Solution

The third proportional to 87,668,823 and 139,621,347 is: 222,360,924.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,668,823 : 139,621,347 = 139,621,347 : x
  2. Step 2: Convert to fraction form
    87,668,823/139,621,347 = 139,621,347/x
  3. Step 3: Cross multiply
    87,668,823x = 139,621,347 × 139,621,347
  4. Step 4: Simplify right side
    87,668,823x = 19,494,120,538,094,408
  5. Step 5: Solve for x
    x = 19,494,120,538,094,408/87,668,823
  6. Step 6: Final answer
    x = 222,360,924.57

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.