Home / 28,722,138.60-43,104,203.10-20,219,082.60

Finding the Fourth Proportional to 28,722,138.60, 43,104,203.10 and 20,219,082.60

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Solution

The fourth proportional to 28,722,138.60, 43,104,203.10 and 20,219,082.60 is: 30,343,403.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722,138.60 : 43,104,203.10 = 20,219,082.60 : x
  2. Step 2: Convert to fraction form
    28,722,138.60/43,104,203.10 = 20,219,082.60/x
  3. Step 3: Cross multiply
    28,722,138.60x = 43,104,203.10 × 20,219,082.60
  4. Step 4: Simplify right side
    28,722,138.60x = 871,527,442,886,076.12
  5. Step 5: Solve for x
    x = 871,527,442,886,076.12/28,722,138.60
  6. Step 6: Final answer
    x = 30,343,403.57

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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.