Home / 13,640,415.60-20,468,496.60-5,121,613.20

Finding the Fourth Proportional to 13,640,415.60, 20,468,496.60 and 5,121,613.20

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Solution

The fourth proportional to 13,640,415.60, 20,468,496.60 and 5,121,613.20 is: 7,685,375.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640,415.60 : 20,468,496.60 = 5,121,613.20 : x
  2. Step 2: Convert to fraction form
    13,640,415.60/20,468,496.60 = 5,121,613.20/x
  3. Step 3: Cross multiply
    13,640,415.60x = 20,468,496.60 × 5,121,613.20
  4. Step 4: Simplify right side
    13,640,415.60x = 104,831,722,370,715.12
  5. Step 5: Solve for x
    x = 104,831,722,370,715.12/13,640,415.60
  6. Step 6: Final answer
    x = 7,685,375.98

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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.