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Finding the Third Proportional to 86,177,474 and 128,960,875

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Solution

The third proportional to 86,177,474 and 128,960,875 is: 192,984,390.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,177,474 : 128,960,875 = 128,960,875 : x
  2. Step 2: Convert to fraction form
    86,177,474/128,960,875 = 128,960,875/x
  3. Step 3: Cross multiply
    86,177,474x = 128,960,875 × 128,960,875
  4. Step 4: Simplify right side
    86,177,474x = 16,630,907,280,765,624
  5. Step 5: Solve for x
    x = 16,630,907,280,765,624/86,177,474
  6. Step 6: Final answer
    x = 192,984,390.34

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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.