Home / 216,206,378.06-324,826,945.75-138,635,261.39

Finding the Fourth Proportional to 216,206,378.06, 324,826,945.75 and 138,635,261.39

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Solution

The fourth proportional to 216,206,378.06, 324,826,945.75 and 138,635,261.39 is: 208,284,644.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,206,378.06 : 324,826,945.75 = 138,635,261.39 : x
  2. Step 2: Convert to fraction form
    216,206,378.06/324,826,945.75 = 138,635,261.39/x
  3. Step 3: Cross multiply
    216,206,378.06x = 324,826,945.75 × 138,635,261.39
  4. Step 4: Simplify right side
    216,206,378.06x = 45,032,468,529,175,200
  5. Step 5: Solve for x
    x = 45,032,468,529,175,200/216,206,378.06
  6. Step 6: Final answer
    x = 208,284,644.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.