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Finding the Third Proportional to 86,177,454 and 128,960,851

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Solution

The third proportional to 86,177,454 and 128,960,851 is: 192,984,363.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,177,454 : 128,960,851 = 128,960,851 : x
  2. Step 2: Convert to fraction form
    86,177,454/128,960,851 = 128,960,851/x
  3. Step 3: Cross multiply
    86,177,454x = 128,960,851 × 128,960,851
  4. Step 4: Simplify right side
    86,177,454x = 16,630,901,090,644,200
  5. Step 5: Solve for x
    x = 16,630,901,090,644,200/86,177,454
  6. Step 6: Final answer
    x = 192,984,363.30

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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.