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Finding the Third Proportional to 198,561,035 and 306,215,574

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Solution

The third proportional to 198,561,035 and 306,215,574 is: 472,237,555.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,561,035 : 306,215,574 = 306,215,574 : x
  2. Step 2: Convert to fraction form
    198,561,035/306,215,574 = 306,215,574/x
  3. Step 3: Cross multiply
    198,561,035x = 306,215,574 × 306,215,574
  4. Step 4: Simplify right side
    198,561,035x = 93,767,977,760,149,472
  5. Step 5: Solve for x
    x = 93,767,977,760,149,472/198,561,035
  6. Step 6: Final answer
    x = 472,237,555.37

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.