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Finding the Third Proportional to 86,177,452 and 128,960,848

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Solution

The third proportional to 86,177,452 and 128,960,848 is: 192,984,358.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,177,452 : 128,960,848 = 128,960,848 : x
  2. Step 2: Convert to fraction form
    86,177,452/128,960,848 = 128,960,848/x
  3. Step 3: Cross multiply
    86,177,452x = 128,960,848 × 128,960,848
  4. Step 4: Simplify right side
    86,177,452x = 16,630,900,316,879,104
  5. Step 5: Solve for x
    x = 16,630,900,316,879,104/86,177,452
  6. Step 6: Final answer
    x = 192,984,358.80

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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.