Home / 13,439,578.64-20,153,762.72-4,215,174.53

Finding the Fourth Proportional to 13,439,578.64, 20,153,762.72 and 4,215,174.53

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Solution

The fourth proportional to 13,439,578.64, 20,153,762.72 and 4,215,174.53 is: 6,321,003.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439,578.64 : 20,153,762.72 = 4,215,174.53 : x
  2. Step 2: Convert to fraction form
    13,439,578.64/20,153,762.72 = 4,215,174.53/x
  3. Step 3: Cross multiply
    13,439,578.64x = 20,153,762.72 × 4,215,174.53
  4. Step 4: Simplify right side
    13,439,578.64x = 84,951,627,200,238.70
  5. Step 5: Solve for x
    x = 84,951,627,200,238.70/13,439,578.64
  6. Step 6: Final answer
    x = 6,321,003.77

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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.