Home / 500,206,582.36-690,058,729.60-301,904,687.64

Finding the Fourth Proportional to 500,206,582.36, 690,058,729.60 and 301,904,687.64

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Solution

The fourth proportional to 500,206,582.36, 690,058,729.60 and 301,904,687.64 is: 416,491,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,206,582.36 : 690,058,729.60 = 301,904,687.64 : x
  2. Step 2: Convert to fraction form
    500,206,582.36/690,058,729.60 = 301,904,687.64/x
  3. Step 3: Cross multiply
    500,206,582.36x = 690,058,729.60 × 301,904,687.64
  4. Step 4: Simplify right side
    500,206,582.36x = 208,331,965,213,143,232
  5. Step 5: Solve for x
    x = 208,331,965,213,143,232/500,206,582.36
  6. Step 6: Final answer
    x = 416,491,850.69

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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.