Home / 821,485,729.27-1,133,524,923.51-464,123,112.52

Finding the Fourth Proportional to 821,485,729.27, 1,133,524,923.51 and 464,123,112.52

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Solution

The fourth proportional to 821,485,729.27, 1,133,524,923.51 and 464,123,112.52 is: 640,419,056.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,485,729.27 : 1,133,524,923.51 = 464,123,112.52 : x
  2. Step 2: Convert to fraction form
    821,485,729.27/1,133,524,923.51 = 464,123,112.52/x
  3. Step 3: Cross multiply
    821,485,729.27x = 1,133,524,923.51 × 464,123,112.52
  4. Step 4: Simplify right side
    821,485,729.27x = 526,095,115,618,456,128
  5. Step 5: Solve for x
    x = 526,095,115,618,456,128/821,485,729.27
  6. Step 6: Final answer
    x = 640,419,056.44

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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.