Home / 3,121,516.06-4,308,240.36-1,815,172.36

Finding the Fourth Proportional to 3,121,516.06, 4,308,240.36 and 1,815,172.36

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Solution

The fourth proportional to 3,121,516.06, 4,308,240.36 and 1,815,172.36 is: 2,505,256.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,516.06 : 4,308,240.36 = 1,815,172.36 : x
  2. Step 2: Convert to fraction form
    3,121,516.06/4,308,240.36 = 1,815,172.36/x
  3. Step 3: Cross multiply
    3,121,516.06x = 4,308,240.36 × 1,815,172.36
  4. Step 4: Simplify right side
    3,121,516.06x = 7,820,198,821,708.45
  5. Step 5: Solve for x
    x = 7,820,198,821,708.45/3,121,516.06
  6. Step 6: Final answer
    x = 2,505,256.64

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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.