Home / 13,439,578.88-20,153,763.11-4,215,174.77

Finding the Fourth Proportional to 13,439,578.88, 20,153,763.11 and 4,215,174.77

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Solution

The fourth proportional to 13,439,578.88, 20,153,763.11 and 4,215,174.77 is: 6,321,004.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439,578.88 : 20,153,763.11 = 4,215,174.77 : x
  2. Step 2: Convert to fraction form
    13,439,578.88/20,153,763.11 = 4,215,174.77/x
  3. Step 3: Cross multiply
    13,439,578.88x = 20,153,763.11 × 4,215,174.77
  4. Step 4: Simplify right side
    13,439,578.88x = 84,951,633,659,984.05
  5. Step 5: Solve for x
    x = 84,951,633,659,984.05/13,439,578.88
  6. Step 6: Final answer
    x = 6,321,004.14

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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.