Home / 13,028,647.20-19,542,970.80-9,669,415.20

Finding the Fourth Proportional to 13,028,647.20, 19,542,970.80 and 9,669,415.20

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Solution

The fourth proportional to 13,028,647.20, 19,542,970.80 and 9,669,415.20 is: 14,504,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,028,647.20 : 19,542,970.80 = 9,669,415.20 : x
  2. Step 2: Convert to fraction form
    13,028,647.20/19,542,970.80 = 9,669,415.20/x
  3. Step 3: Cross multiply
    13,028,647.20x = 19,542,970.80 × 9,669,415.20
  4. Step 4: Simplify right side
    13,028,647.20x = 188,969,098,906,676.16
  5. Step 5: Solve for x
    x = 188,969,098,906,676.16/13,028,647.20
  6. Step 6: Final answer
    x = 14,504,122.80

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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.