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Finding the Third Proportional to 18,520,310 and 39,885,169

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Solution

The third proportional to 18,520,310 and 39,885,169 is: 85,896,332.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520,310 : 39,885,169 = 39,885,169 : x
  2. Step 2: Convert to fraction form
    18,520,310/39,885,169 = 39,885,169/x
  3. Step 3: Cross multiply
    18,520,310x = 39,885,169 × 39,885,169
  4. Step 4: Simplify right side
    18,520,310x = 1,590,826,706,158,561
  5. Step 5: Solve for x
    x = 1,590,826,706,158,561/18,520,310
  6. Step 6: Final answer
    x = 85,896,332.52

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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.