Home / 12,005,784.88-18,009,175.54-3,486,121.35

Finding the Fourth Proportional to 12,005,784.88, 18,009,175.54 and 3,486,121.35

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Solution

The fourth proportional to 12,005,784.88, 18,009,175.54 and 3,486,121.35 is: 5,229,326.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,005,784.88 : 18,009,175.54 = 3,486,121.35 : x
  2. Step 2: Convert to fraction form
    12,005,784.88/18,009,175.54 = 3,486,121.35/x
  3. Step 3: Cross multiply
    12,005,784.88x = 18,009,175.54 × 3,486,121.35
  4. Step 4: Simplify right side
    12,005,784.88x = 62,782,171,318,658.26
  5. Step 5: Solve for x
    x = 62,782,171,318,658.26/12,005,784.88
  6. Step 6: Final answer
    x = 5,229,326.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.