Home / 781,910,039.97-1,172,296,399.64-367,173,151.47

Finding the Fourth Proportional to 781,910,039.97, 1,172,296,399.64 and 367,173,151.47

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Solution

The fourth proportional to 781,910,039.97, 1,172,296,399.64 and 367,173,151.47 is: 550,492,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,910,039.97 : 1,172,296,399.64 = 367,173,151.47 : x
  2. Step 2: Convert to fraction form
    781,910,039.97/1,172,296,399.64 = 367,173,151.47/x
  3. Step 3: Cross multiply
    781,910,039.97x = 1,172,296,399.64 × 367,173,151.47
  4. Step 4: Simplify right side
    781,910,039.97x = 430,435,763,510,917,568
  5. Step 5: Solve for x
    x = 430,435,763,510,917,568/781,910,039.97
  6. Step 6: Final answer
    x = 550,492,692.90

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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.