Home / 13,729,890.75-18,947,249.25-7,619,302.59

Finding the Fourth Proportional to 13,729,890.75, 18,947,249.25 and 7,619,302.59

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Solution

The fourth proportional to 13,729,890.75, 18,947,249.25 and 7,619,302.59 is: 10,514,637.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729,890.75 : 18,947,249.25 = 7,619,302.59 : x
  2. Step 2: Convert to fraction form
    13,729,890.75/18,947,249.25 = 7,619,302.59/x
  3. Step 3: Cross multiply
    13,729,890.75x = 18,947,249.25 × 7,619,302.59
  4. Step 4: Simplify right side
    13,729,890.75x = 144,364,825,283,900.56
  5. Step 5: Solve for x
    x = 144,364,825,283,900.56/13,729,890.75
  6. Step 6: Final answer
    x = 10,514,637.58

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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.