Home / 20,629,300.56-30,912,432.12-8,655,504.72

Finding the Fourth Proportional to 20,629,300.56, 30,912,432.12 and 8,655,504.72

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Solution

The fourth proportional to 20,629,300.56, 30,912,432.12 and 8,655,504.72 is: 12,970,032.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629,300.56 : 30,912,432.12 = 8,655,504.72 : x
  2. Step 2: Convert to fraction form
    20,629,300.56/30,912,432.12 = 8,655,504.72/x
  3. Step 3: Cross multiply
    20,629,300.56x = 30,912,432.12 × 8,655,504.72
  4. Step 4: Simplify right side
    20,629,300.56x = 267,562,702,121,339.62
  5. Step 5: Solve for x
    x = 267,562,702,121,339.62/20,629,300.56
  6. Step 6: Final answer
    x = 12,970,032.67

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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.