Home / 392,699,622.70-541,929,145.71-216,493,944.76

Finding the Fourth Proportional to 392,699,622.70, 541,929,145.71 and 216,493,944.76

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Solution

The fourth proportional to 392,699,622.70, 541,929,145.71 and 216,493,944.76 is: 298,763,665.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,699,622.70 : 541,929,145.71 = 216,493,944.76 : x
  2. Step 2: Convert to fraction form
    392,699,622.70/541,929,145.71 = 216,493,944.76/x
  3. Step 3: Cross multiply
    392,699,622.70x = 541,929,145.71 × 216,493,944.76
  4. Step 4: Simplify right side
    392,699,622.70x = 117,324,378,535,174,736
  5. Step 5: Solve for x
    x = 117,324,378,535,174,736/392,699,622.70
  6. Step 6: Final answer
    x = 298,763,665.03

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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.