Home / 3,121,640.82-4,308,357.33-1,898,330.22

Finding the Fourth Proportional to 3,121,640.82, 4,308,357.33 and 1,898,330.22

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Solution

The fourth proportional to 3,121,640.82, 4,308,357.33 and 1,898,330.22 is: 2,619,995.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,640.82 : 4,308,357.33 = 1,898,330.22 : x
  2. Step 2: Convert to fraction form
    3,121,640.82/4,308,357.33 = 1,898,330.22/x
  3. Step 3: Cross multiply
    3,121,640.82x = 4,308,357.33 × 1,898,330.22
  4. Step 4: Simplify right side
    3,121,640.82x = 8,178,684,918,097.51
  5. Step 5: Solve for x
    x = 8,178,684,918,097.51/3,121,640.82
  6. Step 6: Final answer
    x = 2,619,995.51

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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.