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Finding the Third Proportional to 77,618,508 and 157,517,862

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Solution

The third proportional to 77,618,508 and 157,517,862 is: 319,664,439.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,618,508 : 157,517,862 = 157,517,862 : x
  2. Step 2: Convert to fraction form
    77,618,508/157,517,862 = 157,517,862/x
  3. Step 3: Cross multiply
    77,618,508x = 157,517,862 × 157,517,862
  4. Step 4: Simplify right side
    77,618,508x = 24,811,876,849,051,044
  5. Step 5: Solve for x
    x = 24,811,876,849,051,044/77,618,508
  6. Step 6: Final answer
    x = 319,664,439.43

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.