Home / 13,728,451.44-18,945,265.86-7,616,865.36

Finding the Fourth Proportional to 13,728,451.44, 18,945,265.86 and 7,616,865.36

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Solution

The fourth proportional to 13,728,451.44, 18,945,265.86 and 7,616,865.36 is: 10,511,275.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728,451.44 : 18,945,265.86 = 7,616,865.36 : x
  2. Step 2: Convert to fraction form
    13,728,451.44/18,945,265.86 = 7,616,865.36/x
  3. Step 3: Cross multiply
    13,728,451.44x = 18,945,265.86 × 7,616,865.36
  4. Step 4: Simplify right side
    13,728,451.44x = 144,303,539,265,024.62
  5. Step 5: Solve for x
    x = 144,303,539,265,024.62/13,728,451.44
  6. Step 6: Final answer
    x = 10,511,275.79

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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.