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Finding the Third Proportional to 12,664,220 and 29,865,748

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Solution

The third proportional to 12,664,220 and 29,865,748 is: 70,431,728.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664,220 : 29,865,748 = 29,865,748 : x
  2. Step 2: Convert to fraction form
    12,664,220/29,865,748 = 29,865,748/x
  3. Step 3: Cross multiply
    12,664,220x = 29,865,748 × 29,865,748
  4. Step 4: Simplify right side
    12,664,220x = 891,962,903,599,504
  5. Step 5: Solve for x
    x = 891,962,903,599,504/12,664,220
  6. Step 6: Final answer
    x = 70,431,728.41

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.