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Finding the Third Proportional to 18,520,197 and 39,884,946.38

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Solution

The third proportional to 18,520,197 and 39,884,946.38 is: 85,895,897.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520,197 : 39,884,946.38 = 39,884,946.38 : x
  2. Step 2: Convert to fraction form
    18,520,197/39,884,946.38 = 39,884,946.38/x
  3. Step 3: Cross multiply
    18,520,197x = 39,884,946.38 × 39,884,946.38
  4. Step 4: Simplify right side
    18,520,197x = 1,590,808,947,336,625.75
  5. Step 5: Solve for x
    x = 1,590,808,947,336,625.75/18,520,197
  6. Step 6: Final answer
    x = 85,895,897.72

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.