Home / 9,889,918.47-13,647,906.85-5,479,628.03

Finding the Fourth Proportional to 9,889,918.47, 13,647,906.85 and 5,479,628.03

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Solution

The fourth proportional to 9,889,918.47, 13,647,906.85 and 5,479,628.03 is: 7,561,786.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,889,918.47 : 13,647,906.85 = 5,479,628.03 : x
  2. Step 2: Convert to fraction form
    9,889,918.47/13,647,906.85 = 5,479,628.03/x
  3. Step 3: Cross multiply
    9,889,918.47x = 13,647,906.85 × 5,479,628.03
  4. Step 4: Simplify right side
    9,889,918.47x = 74,785,452,868,123.78
  5. Step 5: Solve for x
    x = 74,785,452,868,123.78/9,889,918.47
  6. Step 6: Final answer
    x = 7,561,786.59

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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.