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Finding the Third Proportional to 60,606,172 and 90,979,242

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Solution

The third proportional to 60,606,172 and 90,979,242 is: 136,573,919.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,606,172 : 90,979,242 = 90,979,242 : x
  2. Step 2: Convert to fraction form
    60,606,172/90,979,242 = 90,979,242/x
  3. Step 3: Cross multiply
    60,606,172x = 90,979,242 × 90,979,242
  4. Step 4: Simplify right side
    60,606,172x = 8,277,222,474,894,564
  5. Step 5: Solve for x
    x = 8,277,222,474,894,564/60,606,172
  6. Step 6: Final answer
    x = 136,573,919.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.