Home / 7,215,209.71-9,956,866.24-3,907,477.10

Finding the Fourth Proportional to 7,215,209.71, 9,956,866.24 and 3,907,477.10

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Solution

The fourth proportional to 7,215,209.71, 9,956,866.24 and 3,907,477.10 is: 5,392,251.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215,209.71 : 9,956,866.24 = 3,907,477.10 : x
  2. Step 2: Convert to fraction form
    7,215,209.71/9,956,866.24 = 3,907,477.10/x
  3. Step 3: Cross multiply
    7,215,209.71x = 9,956,866.24 × 3,907,477.10
  4. Step 4: Simplify right side
    7,215,209.71x = 38,906,226,850,339.62
  5. Step 5: Solve for x
    x = 38,906,226,850,339.62/7,215,209.71
  6. Step 6: Final answer
    x = 5,392,251.71

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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.