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Finding the Third Proportional to 20,971,720 and 28,334,136

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Solution

The third proportional to 20,971,720 and 28,334,136 is: 38,281,231.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,971,720 : 28,334,136 = 28,334,136 : x
  2. Step 2: Convert to fraction form
    20,971,720/28,334,136 = 28,334,136/x
  3. Step 3: Cross multiply
    20,971,720x = 28,334,136 × 28,334,136
  4. Step 4: Simplify right side
    20,971,720x = 802,823,262,866,496
  5. Step 5: Solve for x
    x = 802,823,262,866,496/20,971,720
  6. Step 6: Final answer
    x = 38,281,231.24

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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.