Home / 3,928,395.12-5,890,874.52-1,981,925.83

Finding the Fourth Proportional to 3,928,395.12, 5,890,874.52 and 1,981,925.83

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Solution

The fourth proportional to 3,928,395.12, 5,890,874.52 and 1,981,925.83 is: 2,972,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,395.12 : 5,890,874.52 = 1,981,925.83 : x
  2. Step 2: Convert to fraction form
    3,928,395.12/5,890,874.52 = 1,981,925.83/x
  3. Step 3: Cross multiply
    3,928,395.12x = 5,890,874.52 × 1,981,925.83
  4. Step 4: Simplify right side
    3,928,395.12x = 11,675,276,358,975.02
  5. Step 5: Solve for x
    x = 11,675,276,358,975.02/3,928,395.12
  6. Step 6: Final answer
    x = 2,972,021.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.