Home / 20,129,388.10-30,194,082.15-4,983,319.60

Finding the Fourth Proportional to 20,129,388.10, 30,194,082.15 and 4,983,319.60

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Solution

The fourth proportional to 20,129,388.10, 30,194,082.15 and 4,983,319.60 is: 7,474,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129,388.10 : 30,194,082.15 = 4,983,319.60 : x
  2. Step 2: Convert to fraction form
    20,129,388.10/30,194,082.15 = 4,983,319.60/x
  3. Step 3: Cross multiply
    20,129,388.10x = 30,194,082.15 × 4,983,319.60
  4. Step 4: Simplify right side
    20,129,388.10x = 150,466,761,382,105.12
  5. Step 5: Solve for x
    x = 150,466,761,382,105.12/20,129,388.10
  6. Step 6: Final answer
    x = 7,474,979.40

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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.