Home / 13,640,412.60-20,468,492.10-5,121,610.20

Finding the Fourth Proportional to 13,640,412.60, 20,468,492.10 and 5,121,610.20

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Solution

The fourth proportional to 13,640,412.60, 20,468,492.10 and 5,121,610.20 is: 7,685,371.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640,412.60 : 20,468,492.10 = 5,121,610.20 : x
  2. Step 2: Convert to fraction form
    13,640,412.60/20,468,492.10 = 5,121,610.20/x
  3. Step 3: Cross multiply
    13,640,412.60x = 20,468,492.10 × 5,121,610.20
  4. Step 4: Simplify right side
    13,640,412.60x = 104,831,637,917,979.44
  5. Step 5: Solve for x
    x = 104,831,637,917,979.44/13,640,412.60
  6. Step 6: Final answer
    x = 7,685,371.48

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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.