Home / 919,790,874.12-1,269,141,583.50-523,290,716.04

Finding the Fourth Proportional to 919,790,874.12, 1,269,141,583.50 and 523,290,716.04

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Solution

The fourth proportional to 919,790,874.12, 1,269,141,583.50 and 523,290,716.04 is: 722,044,571.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,790,874.12 : 1,269,141,583.50 = 523,290,716.04 : x
  2. Step 2: Convert to fraction form
    919,790,874.12/1,269,141,583.50 = 523,290,716.04/x
  3. Step 3: Cross multiply
    919,790,874.12x = 1,269,141,583.50 × 523,290,716.04
  4. Step 4: Simplify right side
    919,790,874.12x = 664,130,007,985,854,464
  5. Step 5: Solve for x
    x = 664,130,007,985,854,464/919,790,874.12
  6. Step 6: Final answer
    x = 722,044,571.95

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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.