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Finding the Third Proportional to 272,534,843 and 408,702,209

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Solution

The third proportional to 272,534,843 and 408,702,209 is: 612,903,266.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,534,843 : 408,702,209 = 408,702,209 : x
  2. Step 2: Convert to fraction form
    272,534,843/408,702,209 = 408,702,209/x
  3. Step 3: Cross multiply
    272,534,843x = 408,702,209 × 408,702,209
  4. Step 4: Simplify right side
    272,534,843x = 167,037,495,641,479,680
  5. Step 5: Solve for x
    x = 167,037,495,641,479,680/272,534,843
  6. Step 6: Final answer
    x = 612,903,266.98

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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.