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Finding the Third Proportional to 20,890,856 and 45,817,340

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Solution

The third proportional to 20,890,856 and 45,817,340 is: 100,485,525.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,890,856 : 45,817,340 = 45,817,340 : x
  2. Step 2: Convert to fraction form
    20,890,856/45,817,340 = 45,817,340/x
  3. Step 3: Cross multiply
    20,890,856x = 45,817,340 × 45,817,340
  4. Step 4: Simplify right side
    20,890,856x = 2,099,228,644,675,600
  5. Step 5: Solve for x
    x = 2,099,228,644,675,600/20,890,856
  6. Step 6: Final answer
    x = 100,485,525.57

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.