Home / 303,220,221.91-418,443,906.89-163,990,983.67

Finding the Fourth Proportional to 303,220,221.91, 418,443,906.89 and 163,990,983.67

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Solution

The fourth proportional to 303,220,221.91, 418,443,906.89 and 163,990,983.67 is: 226,307,557.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,220,221.91 : 418,443,906.89 = 163,990,983.67 : x
  2. Step 2: Convert to fraction form
    303,220,221.91/418,443,906.89 = 163,990,983.67/x
  3. Step 3: Cross multiply
    303,220,221.91x = 418,443,906.89 × 163,990,983.67
  4. Step 4: Simplify right side
    303,220,221.91x = 68,621,027,900,972,848
  5. Step 5: Solve for x
    x = 68,621,027,900,972,848/303,220,221.91
  6. Step 6: Final answer
    x = 226,307,557.82

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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.