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Finding the Third Proportional to 203,778,355.50 and 447,589,553.63

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Solution

The third proportional to 203,778,355.50 and 447,589,553.63 is: 983,109,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,778,355.50 : 447,589,553.63 = 447,589,553.63 : x
  2. Step 2: Convert to fraction form
    203,778,355.50/447,589,553.63 = 447,589,553.63/x
  3. Step 3: Cross multiply
    203,778,355.50x = 447,589,553.63 × 447,589,553.63
  4. Step 4: Simplify right side
    203,778,355.50x = 200,336,408,514,226,752
  5. Step 5: Solve for x
    x = 200,336,408,514,226,752/203,778,355.50
  6. Step 6: Final answer
    x = 983,109,359.30

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.