Home / 13,118,629.62-18,104,519.85-7,238,235

Finding the Fourth Proportional to 13,118,629.62, 18,104,519.85 and 7,238,235

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Solution

The fourth proportional to 13,118,629.62, 18,104,519.85 and 7,238,235 is: 9,989,211.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118,629.62 : 18,104,519.85 = 7,238,235 : x
  2. Step 2: Convert to fraction form
    13,118,629.62/18,104,519.85 = 7,238,235/x
  3. Step 3: Cross multiply
    13,118,629.62x = 18,104,519.85 × 7,238,235
  4. Step 4: Simplify right side
    13,118,629.62x = 131,044,769,236,464.77
  5. Step 5: Solve for x
    x = 131,044,769,236,464.77/13,118,629.62
  6. Step 6: Final answer
    x = 9,989,211.76

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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.