Home / 13,439,589.36-20,153,778.84-4,215,185.28

Finding the Fourth Proportional to 13,439,589.36, 20,153,778.84 and 4,215,185.28

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Solution

The fourth proportional to 13,439,589.36, 20,153,778.84 and 4,215,185.28 is: 6,321,019.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439,589.36 : 20,153,778.84 = 4,215,185.28 : x
  2. Step 2: Convert to fraction form
    13,439,589.36/20,153,778.84 = 4,215,185.28/x
  3. Step 3: Cross multiply
    13,439,589.36x = 20,153,778.84 × 4,215,185.28
  4. Step 4: Simplify right side
    13,439,589.36x = 84,951,911,902,743.48
  5. Step 5: Solve for x
    x = 84,951,911,902,743.48/13,439,589.36
  6. Step 6: Final answer
    x = 6,321,019.91

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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.