Home / 2,139,606.48-3,190,552.26-2,120,419.28

Finding the Fourth Proportional to 2,139,606.48, 3,190,552.26 and 2,120,419.28

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Solution

The fourth proportional to 2,139,606.48, 3,190,552.26 and 2,120,419.28 is: 3,161,940.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,606.48 : 3,190,552.26 = 2,120,419.28 : x
  2. Step 2: Convert to fraction form
    2,139,606.48/3,190,552.26 = 2,120,419.28/x
  3. Step 3: Cross multiply
    2,139,606.48x = 3,190,552.26 × 2,120,419.28
  4. Step 4: Simplify right side
    2,139,606.48x = 6,765,308,525,951.57
  5. Step 5: Solve for x
    x = 6,765,308,525,951.57/2,139,606.48
  6. Step 6: Final answer
    x = 3,161,940.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.