Home / 20,455,449.90-30,679,826.31-8,324,423.34

Finding the Fourth Proportional to 20,455,449.90, 30,679,826.31 and 8,324,423.34

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Solution

The fourth proportional to 20,455,449.90, 30,679,826.31 and 8,324,423.34 is: 12,485,272.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455,449.90 : 30,679,826.31 = 8,324,423.34 : x
  2. Step 2: Convert to fraction form
    20,455,449.90/30,679,826.31 = 8,324,423.34/x
  3. Step 3: Cross multiply
    20,455,449.90x = 30,679,826.31 × 8,324,423.34
  4. Step 4: Simplify right side
    20,455,449.90x = 255,391,862,202,110.06
  5. Step 5: Solve for x
    x = 255,391,862,202,110.06/20,455,449.90
  6. Step 6: Final answer
    x = 12,485,272.31

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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.