Home / 420,652,078.88-580,489,174.42-235,014,488.78

Finding the Fourth Proportional to 420,652,078.88, 580,489,174.42 and 235,014,488.78

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Solution

The fourth proportional to 420,652,078.88, 580,489,174.42 and 235,014,488.78 is: 324,314,019.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,652,078.88 : 580,489,174.42 = 235,014,488.78 : x
  2. Step 2: Convert to fraction form
    420,652,078.88/580,489,174.42 = 235,014,488.78/x
  3. Step 3: Cross multiply
    420,652,078.88x = 580,489,174.42 × 235,014,488.78
  4. Step 4: Simplify right side
    420,652,078.88x = 136,423,366,565,150,576
  5. Step 5: Solve for x
    x = 136,423,366,565,150,576/420,652,078.88
  6. Step 6: Final answer
    x = 324,314,019.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.