Home / 820,426,332.66-1,230,835,278.38-267,729,789.34

Finding the Fourth Proportional to 820,426,332.66, 1,230,835,278.38 and 267,729,789.34

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Solution

The fourth proportional to 820,426,332.66, 1,230,835,278.38 and 267,729,789.34 is: 401,658,572.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,426,332.66 : 1,230,835,278.38 = 267,729,789.34 : x
  2. Step 2: Convert to fraction form
    820,426,332.66/1,230,835,278.38 = 267,729,789.34/x
  3. Step 3: Cross multiply
    820,426,332.66x = 1,230,835,278.38 × 267,729,789.34
  4. Step 4: Simplify right side
    820,426,332.66x = 329,531,269,793,117,568
  5. Step 5: Solve for x
    x = 329,531,269,793,117,568/820,426,332.66
  6. Step 6: Final answer
    x = 401,658,572.72

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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.