Home / 13,498,855.18-18,628,408.08-7,619,726.90

Finding the Fourth Proportional to 13,498,855.18, 18,628,408.08 and 7,619,726.90

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Solution

The fourth proportional to 13,498,855.18, 18,628,408.08 and 7,619,726.90 is: 10,515,216.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,498,855.18 : 18,628,408.08 = 7,619,726.90 : x
  2. Step 2: Convert to fraction form
    13,498,855.18/18,628,408.08 = 7,619,726.90/x
  3. Step 3: Cross multiply
    13,498,855.18x = 18,628,408.08 × 7,619,726.90
  4. Step 4: Simplify right side
    13,498,855.18x = 141,943,382,197,924.34
  5. Step 5: Solve for x
    x = 141,943,382,197,924.34/13,498,855.18
  6. Step 6: Final answer
    x = 10,515,216.32

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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.