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Finding the Third Proportional to 20,971,523 and 28,333,789

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Solution

The third proportional to 20,971,523 and 28,333,789 is: 38,280,653.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,971,523 : 28,333,789 = 28,333,789 : x
  2. Step 2: Convert to fraction form
    20,971,523/28,333,789 = 28,333,789/x
  3. Step 3: Cross multiply
    20,971,523x = 28,333,789 × 28,333,789
  4. Step 4: Simplify right side
    20,971,523x = 802,803,599,096,521
  5. Step 5: Solve for x
    x = 802,803,599,096,521/20,971,523
  6. Step 6: Final answer
    x = 38,280,653.20

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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.