Home / 39,628,805.73-54,688,195.25-21,988,027.69

Finding the Fourth Proportional to 39,628,805.73, 54,688,195.25 and 21,988,027.69

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Solution

The fourth proportional to 39,628,805.73, 54,688,195.25 and 21,988,027.69 is: 30,343,724.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,628,805.73 : 54,688,195.25 = 21,988,027.69 : x
  2. Step 2: Convert to fraction form
    39,628,805.73/54,688,195.25 = 21,988,027.69/x
  3. Step 3: Cross multiply
    39,628,805.73x = 54,688,195.25 × 21,988,027.69
  4. Step 4: Simplify right side
    39,628,805.73x = 1,202,485,551,308,921
  5. Step 5: Solve for x
    x = 1,202,485,551,308,921/39,628,805.73
  6. Step 6: Final answer
    x = 30,343,724.20

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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.