Home / 20,505,444.36-28,284,179.78-13,151,629.52

Finding the Fourth Proportional to 20,505,444.36, 28,284,179.78 and 13,151,629.52

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Solution

The fourth proportional to 20,505,444.36, 28,284,179.78 and 13,151,629.52 is: 18,140,697.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,505,444.36 : 28,284,179.78 = 13,151,629.52 : x
  2. Step 2: Convert to fraction form
    20,505,444.36/28,284,179.78 = 13,151,629.52/x
  3. Step 3: Cross multiply
    20,505,444.36x = 28,284,179.78 × 13,151,629.52
  4. Step 4: Simplify right side
    20,505,444.36x = 371,983,053,536,456.06
  5. Step 5: Solve for x
    x = 371,983,053,536,456.06/20,505,444.36
  6. Step 6: Final answer
    x = 18,140,697.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.