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Finding the Third Proportional to 90,590,320 and 138,520,177

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Solution

The third proportional to 90,590,320 and 138,520,177 is: 211,808,937.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,590,320 : 138,520,177 = 138,520,177 : x
  2. Step 2: Convert to fraction form
    90,590,320/138,520,177 = 138,520,177/x
  3. Step 3: Cross multiply
    90,590,320x = 138,520,177 × 138,520,177
  4. Step 4: Simplify right side
    90,590,320x = 19,187,839,436,111,328
  5. Step 5: Solve for x
    x = 19,187,839,436,111,328/90,590,320
  6. Step 6: Final answer
    x = 211,808,937.60

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.