Home / 13,415,245.36-20,122,438.36-5,638,279.04

Finding the Fourth Proportional to 13,415,245.36, 20,122,438.36 and 5,638,279.04

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Solution

The fourth proportional to 13,415,245.36, 20,122,438.36 and 5,638,279.04 is: 8,457,237.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,415,245.36 : 20,122,438.36 = 5,638,279.04 : x
  2. Step 2: Convert to fraction form
    13,415,245.36/20,122,438.36 = 5,638,279.04/x
  3. Step 3: Cross multiply
    13,415,245.36x = 20,122,438.36 × 5,638,279.04
  4. Step 4: Simplify right side
    13,415,245.36x = 113,455,922,438,879.97
  5. Step 5: Solve for x
    x = 113,455,922,438,879.97/13,415,245.36
  6. Step 6: Final answer
    x = 8,457,237.97

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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.