Home / 219,619,905.76-303,074,546.16-121,834,761.76

Finding the Fourth Proportional to 219,619,905.76, 303,074,546.16 and 121,834,761.76

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Solution

The fourth proportional to 219,619,905.76, 303,074,546.16 and 121,834,761.76 is: 168,131,458.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,619,905.76 : 303,074,546.16 = 121,834,761.76 : x
  2. Step 2: Convert to fraction form
    219,619,905.76/303,074,546.16 = 121,834,761.76/x
  3. Step 3: Cross multiply
    219,619,905.76x = 303,074,546.16 × 121,834,761.76
  4. Step 4: Simplify right side
    219,619,905.76x = 36,925,015,126,923,728
  5. Step 5: Solve for x
    x = 36,925,015,126,923,728/219,619,905.76
  6. Step 6: Final answer
    x = 168,131,458.75

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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.