Home / 397,174,209.56-548,105,453.28-218,578,660.64

Finding the Fourth Proportional to 397,174,209.56, 548,105,453.28 and 218,578,660.64

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Solution

The fourth proportional to 397,174,209.56, 548,105,453.28 and 218,578,660.64 is: 301,641,327.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,174,209.56 : 548,105,453.28 = 218,578,660.64 : x
  2. Step 2: Convert to fraction form
    397,174,209.56/548,105,453.28 = 218,578,660.64/x
  3. Step 3: Cross multiply
    397,174,209.56x = 548,105,453.28 × 218,578,660.64
  4. Step 4: Simplify right side
    397,174,209.56x = 119,804,155,867,422,480
  5. Step 5: Solve for x
    x = 119,804,155,867,422,480/397,174,209.56
  6. Step 6: Final answer
    x = 301,641,327.62

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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.