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Finding the Third Proportional to 18,231,798 and 39,490,407

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Solution

The third proportional to 18,231,798 and 39,490,407 is: 85,536,941.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231,798 : 39,490,407 = 39,490,407 : x
  2. Step 2: Convert to fraction form
    18,231,798/39,490,407 = 39,490,407/x
  3. Step 3: Cross multiply
    18,231,798x = 39,490,407 × 39,490,407
  4. Step 4: Simplify right side
    18,231,798x = 1,559,492,245,025,649
  5. Step 5: Solve for x
    x = 1,559,492,245,025,649/18,231,798
  6. Step 6: Final answer
    x = 85,536,941.83

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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.