Home / 1,188,229,818.24-1,782,356,984.64-359,190,268.80

Finding the Fourth Proportional to 1,188,229,818.24, 1,782,356,984.64 and 359,190,268.80

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Solution

The fourth proportional to 1,188,229,818.24, 1,782,356,984.64 and 359,190,268.80 is: 538,789,108.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,229,818.24 : 1,782,356,984.64 = 359,190,268.80 : x
  2. Step 2: Convert to fraction form
    1,188,229,818.24/1,782,356,984.64 = 359,190,268.80/x
  3. Step 3: Cross multiply
    1,188,229,818.24x = 1,782,356,984.64 × 359,190,268.80
  4. Step 4: Simplify right side
    1,188,229,818.24x = 640,205,284,410,399,104
  5. Step 5: Solve for x
    x = 640,205,284,410,399,104/1,188,229,818.24
  6. Step 6: Final answer
    x = 538,789,108.46

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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.