Home / 12,148,317.90-18,222,768.45-3,628,932.30

Finding the Fourth Proportional to 12,148,317.90, 18,222,768.45 and 3,628,932.30

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Solution

The fourth proportional to 12,148,317.90, 18,222,768.45 and 3,628,932.30 is: 5,443,485.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148,317.90 : 18,222,768.45 = 3,628,932.30 : x
  2. Step 2: Convert to fraction form
    12,148,317.90/18,222,768.45 = 3,628,932.30/x
  3. Step 3: Cross multiply
    12,148,317.90x = 18,222,768.45 × 3,628,932.30
  4. Step 4: Simplify right side
    12,148,317.90x = 66,129,193,023,625.93
  5. Step 5: Solve for x
    x = 66,129,193,023,625.93/12,148,317.90
  6. Step 6: Final answer
    x = 5,443,485.56

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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.