Home / 13,729,855.75-18,947,200.98-7,619,267.59

Finding the Fourth Proportional to 13,729,855.75, 18,947,200.98 and 7,619,267.59

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Solution

The fourth proportional to 13,729,855.75, 18,947,200.98 and 7,619,267.59 is: 10,514,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729,855.75 : 18,947,200.98 = 7,619,267.59 : x
  2. Step 2: Convert to fraction form
    13,729,855.75/18,947,200.98 = 7,619,267.59/x
  3. Step 3: Cross multiply
    13,729,855.75x = 18,947,200.98 × 7,619,267.59
  4. Step 4: Simplify right side
    13,729,855.75x = 144,363,794,348,130.25
  5. Step 5: Solve for x
    x = 144,363,794,348,130.25/13,729,855.75
  6. Step 6: Final answer
    x = 10,514,589.30

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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.