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Finding the Third Proportional to 12,520,518 and 19,901,385

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Solution

The third proportional to 12,520,518 and 19,901,385 is: 31,633,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520,518 : 19,901,385 = 19,901,385 : x
  2. Step 2: Convert to fraction form
    12,520,518/19,901,385 = 19,901,385/x
  3. Step 3: Cross multiply
    12,520,518x = 19,901,385 × 19,901,385
  4. Step 4: Simplify right side
    12,520,518x = 396,065,124,918,225
  5. Step 5: Solve for x
    x = 396,065,124,918,225/12,520,518
  6. Step 6: Final answer
    x = 31,633,285.85

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.