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Finding the Third Proportional to 120,539,940 and 261,628,936

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Solution

The third proportional to 120,539,940 and 261,628,936 is: 567,859,085.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,539,940 : 261,628,936 = 261,628,936 : x
  2. Step 2: Convert to fraction form
    120,539,940/261,628,936 = 261,628,936/x
  3. Step 3: Cross multiply
    120,539,940x = 261,628,936 × 261,628,936
  4. Step 4: Simplify right side
    120,539,940x = 68,449,700,152,492,096
  5. Step 5: Solve for x
    x = 68,449,700,152,492,096/120,539,940
  6. Step 6: Final answer
    x = 567,859,085.98

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.