Home / 39,628,806.23-54,688,195.94-21,988,028.19

Finding the Fourth Proportional to 39,628,806.23, 54,688,195.94 and 21,988,028.19

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Solution

The fourth proportional to 39,628,806.23, 54,688,195.94 and 21,988,028.19 is: 30,343,724.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,628,806.23 : 54,688,195.94 = 21,988,028.19 : x
  2. Step 2: Convert to fraction form
    39,628,806.23/54,688,195.94 = 21,988,028.19/x
  3. Step 3: Cross multiply
    39,628,806.23x = 54,688,195.94 × 21,988,028.19
  4. Step 4: Simplify right side
    39,628,806.23x = 1,202,485,593,988,963.50
  5. Step 5: Solve for x
    x = 1,202,485,593,988,963.50/39,628,806.23
  6. Step 6: Final answer
    x = 30,343,724.89

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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.