Home / 12,408,045.30-18,612,651.15-3,888,659.70

Finding the Fourth Proportional to 12,408,045.30, 18,612,651.15 and 3,888,659.70

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Solution

The fourth proportional to 12,408,045.30, 18,612,651.15 and 3,888,659.70 is: 5,833,172.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408,045.30 : 18,612,651.15 = 3,888,659.70 : x
  2. Step 2: Convert to fraction form
    12,408,045.30/18,612,651.15 = 3,888,659.70/x
  3. Step 3: Cross multiply
    12,408,045.30x = 18,612,651.15 × 3,888,659.70
  4. Step 4: Simplify right side
    12,408,045.30x = 72,378,266,437,163.66
  5. Step 5: Solve for x
    x = 72,378,266,437,163.66/12,408,045.30
  6. Step 6: Final answer
    x = 5,833,172.32

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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.