Home / 820,426,332.91-1,230,835,278.75-267,729,789.59

Finding the Fourth Proportional to 820,426,332.91, 1,230,835,278.75 and 267,729,789.59

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Solution

The fourth proportional to 820,426,332.91, 1,230,835,278.75 and 267,729,789.59 is: 401,658,573.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,426,332.91 : 1,230,835,278.75 = 267,729,789.59 : x
  2. Step 2: Convert to fraction form
    820,426,332.91/1,230,835,278.75 = 267,729,789.59/x
  3. Step 3: Cross multiply
    820,426,332.91x = 1,230,835,278.75 × 267,729,789.59
  4. Step 4: Simplify right side
    820,426,332.91x = 329,531,270,202,763,584
  5. Step 5: Solve for x
    x = 329,531,270,202,763,584/820,426,332.91
  6. Step 6: Final answer
    x = 401,658,573.09

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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.