Home / 493,957,072.76-682,461,433.68-420,395,009.54

Finding the Fourth Proportional to 493,957,072.76, 682,461,433.68 and 420,395,009.54

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Solution

The fourth proportional to 493,957,072.76, 682,461,433.68 and 420,395,009.54 is: 580,826,546.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,957,072.76 : 682,461,433.68 = 420,395,009.54 : x
  2. Step 2: Convert to fraction form
    493,957,072.76/682,461,433.68 = 420,395,009.54/x
  3. Step 3: Cross multiply
    493,957,072.76x = 682,461,433.68 × 420,395,009.54
  4. Step 4: Simplify right side
    493,957,072.76x = 286,903,380,922,585,664
  5. Step 5: Solve for x
    x = 286,903,380,922,585,664/493,957,072.76
  6. Step 6: Final answer
    x = 580,826,546.97

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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.