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Finding the Third Proportional to 20,971,222 and 28,333,428

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Solution

The third proportional to 20,971,222 and 28,333,428 is: 38,280,227.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,971,222 : 28,333,428 = 28,333,428 : x
  2. Step 2: Convert to fraction form
    20,971,222/28,333,428 = 28,333,428/x
  3. Step 3: Cross multiply
    20,971,222x = 28,333,428 × 28,333,428
  4. Step 4: Simplify right side
    20,971,222x = 802,783,142,231,184
  5. Step 5: Solve for x
    x = 802,783,142,231,184/20,971,222
  6. Step 6: Final answer
    x = 38,280,227.17

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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.