Home / 12,826,153.53-17,700,378.39-7,319,418.75

Finding the Fourth Proportional to 12,826,153.53, 17,700,378.39 and 7,319,418.75

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Solution

The fourth proportional to 12,826,153.53, 17,700,378.39 and 7,319,418.75 is: 10,100,961.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,826,153.53 : 17,700,378.39 = 7,319,418.75 : x
  2. Step 2: Convert to fraction form
    12,826,153.53/17,700,378.39 = 7,319,418.75/x
  3. Step 3: Cross multiply
    12,826,153.53x = 17,700,378.39 × 7,319,418.75
  4. Step 4: Simplify right side
    12,826,153.53x = 129,556,481,469,860.81
  5. Step 5: Solve for x
    x = 129,556,481,469,860.81/12,826,153.53
  6. Step 6: Final answer
    x = 10,100,961.38

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1.5x scale

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.