Home / 20,434,745.88-28,206,782.74-12,177,397.51

Finding the Fourth Proportional to 20,434,745.88, 28,206,782.74 and 12,177,397.51

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Solution

The fourth proportional to 20,434,745.88, 28,206,782.74 and 12,177,397.51 is: 16,808,880.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434,745.88 : 28,206,782.74 = 12,177,397.51 : x
  2. Step 2: Convert to fraction form
    20,434,745.88/28,206,782.74 = 12,177,397.51/x
  3. Step 3: Cross multiply
    20,434,745.88x = 28,206,782.74 × 12,177,397.51
  4. Step 4: Simplify right side
    20,434,745.88x = 343,485,205,802,226.56
  5. Step 5: Solve for x
    x = 343,485,205,802,226.56/20,434,745.88
  6. Step 6: Final answer
    x = 16,808,880.71

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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.