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Finding the Third Proportional to 57,315,210 and 121,099,611

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Solution

The third proportional to 57,315,210 and 121,099,611 is: 255,867,784.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,315,210 : 121,099,611 = 121,099,611 : x
  2. Step 2: Convert to fraction form
    57,315,210/121,099,611 = 121,099,611/x
  3. Step 3: Cross multiply
    57,315,210x = 121,099,611 × 121,099,611
  4. Step 4: Simplify right side
    57,315,210x = 14,665,115,784,351,320
  5. Step 5: Solve for x
    x = 14,665,115,784,351,320/57,315,210
  6. Step 6: Final answer
    x = 255,867,784.21

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.