Home / 9,378,991.79-12,944,367.95-5,404,489.70

Finding the Fourth Proportional to 9,378,991.79, 12,944,367.95 and 5,404,489.70

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Solution

The fourth proportional to 9,378,991.79, 12,944,367.95 and 5,404,489.70 is: 7,458,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,378,991.79 : 12,944,367.95 = 5,404,489.70 : x
  2. Step 2: Convert to fraction form
    9,378,991.79/12,944,367.95 = 5,404,489.70/x
  3. Step 3: Cross multiply
    9,378,991.79x = 12,944,367.95 × 5,404,489.70
  4. Step 4: Simplify right side
    9,378,991.79x = 69,957,703,167,040.84
  5. Step 5: Solve for x
    x = 69,957,703,167,040.84/9,378,991.79
  6. Step 6: Final answer
    x = 7,458,979.04

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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.