Home / 303,220,221.92-418,443,906.90-163,990,983.66

Finding the Fourth Proportional to 303,220,221.92, 418,443,906.90 and 163,990,983.66

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Solution

The fourth proportional to 303,220,221.92, 418,443,906.90 and 163,990,983.66 is: 226,307,557.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,220,221.92 : 418,443,906.90 = 163,990,983.66 : x
  2. Step 2: Convert to fraction form
    303,220,221.92/418,443,906.90 = 163,990,983.66/x
  3. Step 3: Cross multiply
    303,220,221.92x = 418,443,906.90 × 163,990,983.66
  4. Step 4: Simplify right side
    303,220,221.92x = 68,621,027,899,064,456
  5. Step 5: Solve for x
    x = 68,621,027,899,064,456/303,220,221.92
  6. Step 6: Final answer
    x = 226,307,557.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.