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Finding the Third Proportional to 30,306,694 and 66,480,920

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Solution

The third proportional to 30,306,694 and 66,480,920 is: 145,832,888.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,306,694 : 66,480,920 = 66,480,920 : x
  2. Step 2: Convert to fraction form
    30,306,694/66,480,920 = 66,480,920/x
  3. Step 3: Cross multiply
    30,306,694x = 66,480,920 × 66,480,920
  4. Step 4: Simplify right side
    30,306,694x = 4,419,712,724,046,400
  5. Step 5: Solve for x
    x = 4,419,712,724,046,400/30,306,694
  6. Step 6: Final answer
    x = 145,832,888.41

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.