Home / 20,309,146.88-30,478,265.37-8,645,695.61

Finding the Fourth Proportional to 20,309,146.88, 30,478,265.37 and 8,645,695.61

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Solution

The fourth proportional to 20,309,146.88, 30,478,265.37 and 8,645,695.61 is: 12,974,735.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,309,146.88 : 30,478,265.37 = 8,645,695.61 : x
  2. Step 2: Convert to fraction form
    20,309,146.88/30,478,265.37 = 8,645,695.61/x
  3. Step 3: Cross multiply
    20,309,146.88x = 30,478,265.37 × 8,645,695.61
  4. Step 4: Simplify right side
    20,309,146.88x = 263,505,804,957,432.72
  5. Step 5: Solve for x
    x = 263,505,804,957,432.72/20,309,146.88
  6. Step 6: Final answer
    x = 12,974,735.30

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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.