Home / 13,579,761.96-18,739,642.50-7,468,171.56

Finding the Fourth Proportional to 13,579,761.96, 18,739,642.50 and 7,468,171.56

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Solution

The fourth proportional to 13,579,761.96, 18,739,642.50 and 7,468,171.56 is: 10,305,840.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,761.96 : 18,739,642.50 = 7,468,171.56 : x
  2. Step 2: Convert to fraction form
    13,579,761.96/18,739,642.50 = 7,468,171.56/x
  3. Step 3: Cross multiply
    13,579,761.96x = 18,739,642.50 × 7,468,171.56
  4. Step 4: Simplify right side
    13,579,761.96x = 139,950,865,163,067.30
  5. Step 5: Solve for x
    x = 139,950,865,163,067.30/13,579,761.96
  6. Step 6: Final answer
    x = 10,305,840.82

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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.