Home / 278,316,147.80-417,474,221.70-254,082,438.20

Finding the Fourth Proportional to 278,316,147.80, 417,474,221.70 and 254,082,438.20

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Solution

The fourth proportional to 278,316,147.80, 417,474,221.70 and 254,082,438.20 is: 381,123,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,316,147.80 : 417,474,221.70 = 254,082,438.20 : x
  2. Step 2: Convert to fraction form
    278,316,147.80/417,474,221.70 = 254,082,438.20/x
  3. Step 3: Cross multiply
    278,316,147.80x = 417,474,221.70 × 254,082,438.20
  4. Step 4: Simplify right side
    278,316,147.80x = 106,072,868,135,183,344
  5. Step 5: Solve for x
    x = 106,072,868,135,183,344/278,316,147.80
  6. Step 6: Final answer
    x = 381,123,657.30

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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.