Home / 13,538,939.40-20,289,312.95-7,476,400.44

Finding the Fourth Proportional to 13,538,939.40, 20,289,312.95 and 7,476,400.44

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Solution

The fourth proportional to 13,538,939.40, 20,289,312.95 and 7,476,400.44 is: 11,204,055.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538,939.40 : 20,289,312.95 = 7,476,400.44 : x
  2. Step 2: Convert to fraction form
    13,538,939.40/20,289,312.95 = 7,476,400.44/x
  3. Step 3: Cross multiply
    13,538,939.40x = 20,289,312.95 × 7,476,400.44
  4. Step 4: Simplify right side
    13,538,939.40x = 151,691,028,229,295.72
  5. Step 5: Solve for x
    x = 151,691,028,229,295.72/13,538,939.40
  6. Step 6: Final answer
    x = 11,204,055.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.