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Finding the Third Proportional to 131,503,990 and 285,896,953

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Solution

The third proportional to 131,503,990 and 285,896,953 is: 621,555,800.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,503,990 : 285,896,953 = 285,896,953 : x
  2. Step 2: Convert to fraction form
    131,503,990/285,896,953 = 285,896,953/x
  3. Step 3: Cross multiply
    131,503,990x = 285,896,953 × 285,896,953
  4. Step 4: Simplify right side
    131,503,990x = 81,737,067,734,684,208
  5. Step 5: Solve for x
    x = 81,737,067,734,684,208/131,503,990
  6. Step 6: Final answer
    x = 621,555,800.21

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.