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Finding the Third Proportional to 20,971,209 and 28,333,410

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Solution

The third proportional to 20,971,209 and 28,333,410 is: 38,280,202.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,971,209 : 28,333,410 = 28,333,410 : x
  2. Step 2: Convert to fraction form
    20,971,209/28,333,410 = 28,333,410/x
  3. Step 3: Cross multiply
    20,971,209x = 28,333,410 × 28,333,410
  4. Step 4: Simplify right side
    20,971,209x = 802,782,122,228,100
  5. Step 5: Solve for x
    x = 802,782,122,228,100/20,971,209
  6. Step 6: Final answer
    x = 38,280,202.26

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.