Home / 20,129,390.10-30,194,085.15-4,983,321.60

Finding the Fourth Proportional to 20,129,390.10, 30,194,085.15 and 4,983,321.60

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Solution

The fourth proportional to 20,129,390.10, 30,194,085.15 and 4,983,321.60 is: 7,474,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129,390.10 : 30,194,085.15 = 4,983,321.60 : x
  2. Step 2: Convert to fraction form
    20,129,390.10/30,194,085.15 = 4,983,321.60/x
  3. Step 3: Cross multiply
    20,129,390.10x = 30,194,085.15 × 4,983,321.60
  4. Step 4: Simplify right side
    20,129,390.10x = 150,466,836,720,234.22
  5. Step 5: Solve for x
    x = 150,466,836,720,234.22/20,129,390.10
  6. Step 6: Final answer
    x = 7,474,982.40

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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.