Home / 9,889,920.26-13,647,909.32-5,479,629.81

Finding the Fourth Proportional to 9,889,920.26, 13,647,909.32 and 5,479,629.81

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Solution

The fourth proportional to 9,889,920.26, 13,647,909.32 and 5,479,629.81 is: 7,561,789.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,889,920.26 : 13,647,909.32 = 5,479,629.81 : x
  2. Step 2: Convert to fraction form
    9,889,920.26/13,647,909.32 = 5,479,629.81/x
  3. Step 3: Cross multiply
    9,889,920.26x = 13,647,909.32 × 5,479,629.81
  4. Step 4: Simplify right side
    9,889,920.26x = 74,785,490,754,048.83
  5. Step 5: Solve for x
    x = 74,785,490,754,048.83/9,889,920.26
  6. Step 6: Final answer
    x = 7,561,789.05

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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.