Home / 428,052,574.01-641,921,369.68-147,862,183.56

Finding the Fourth Proportional to 428,052,574.01, 641,921,369.68 and 147,862,183.56

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Solution

The fourth proportional to 428,052,574.01, 641,921,369.68 and 147,862,183.56 is: 221,738,873.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,052,574.01 : 641,921,369.68 = 147,862,183.56 : x
  2. Step 2: Convert to fraction form
    428,052,574.01/641,921,369.68 = 147,862,183.56/x
  3. Step 3: Cross multiply
    428,052,574.01x = 641,921,369.68 × 147,862,183.56
  4. Step 4: Simplify right side
    428,052,574.01x = 94,915,895,392,488,400
  5. Step 5: Solve for x
    x = 94,915,895,392,488,400/428,052,574.01
  6. Step 6: Final answer
    x = 221,738,873.11

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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.