Home / 7,928,078.66-10,942,282.92-5,169,977.72

Finding the Fourth Proportional to 7,928,078.66, 10,942,282.92 and 5,169,977.72

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Solution

The fourth proportional to 7,928,078.66, 10,942,282.92 and 5,169,977.72 is: 7,135,569.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928,078.66 : 10,942,282.92 = 5,169,977.72 : x
  2. Step 2: Convert to fraction form
    7,928,078.66/10,942,282.92 = 5,169,977.72/x
  3. Step 3: Cross multiply
    7,928,078.66x = 10,942,282.92 × 5,169,977.72
  4. Step 4: Simplify right side
    7,928,078.66x = 56,571,358,940,515.32
  5. Step 5: Solve for x
    x = 56,571,358,940,515.32/7,928,078.66
  6. Step 6: Final answer
    x = 7,135,569.84

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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.