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Finding the Third Proportional to 269,561,990.50 and 385,211,109.50

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Solution

The third proportional to 269,561,990.50 and 385,211,109.50 is: 550,476,714.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,561,990.50 : 385,211,109.50 = 385,211,109.50 : x
  2. Step 2: Convert to fraction form
    269,561,990.50/385,211,109.50 = 385,211,109.50/x
  3. Step 3: Cross multiply
    269,561,990.50x = 385,211,109.50 × 385,211,109.50
  4. Step 4: Simplify right side
    269,561,990.50x = 148,387,598,882,220,992
  5. Step 5: Solve for x
    x = 148,387,598,882,220,992/269,561,990.50
  6. Step 6: Final answer
    x = 550,476,714.49

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.