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Finding the Third Proportional to 21,680,662.50 and 31,921,755.75

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Solution

The third proportional to 21,680,662.50 and 31,921,755.75 is: 47,000,339.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,680,662.50 : 31,921,755.75 = 31,921,755.75 : x
  2. Step 2: Convert to fraction form
    21,680,662.50/31,921,755.75 = 31,921,755.75/x
  3. Step 3: Cross multiply
    21,680,662.50x = 31,921,755.75 × 31,921,755.75
  4. Step 4: Simplify right side
    21,680,662.50x = 1,018,998,490,162,658
  5. Step 5: Solve for x
    x = 1,018,998,490,162,658/21,680,662.50
  6. Step 6: Final answer
    x = 47,000,339.13

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.