Home / 216,206,377.71-324,826,945.25-138,635,261.08

Finding the Fourth Proportional to 216,206,377.71, 324,826,945.25 and 138,635,261.08

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Solution

The fourth proportional to 216,206,377.71, 324,826,945.25 and 138,635,261.08 is: 208,284,643.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,206,377.71 : 324,826,945.25 = 138,635,261.08 : x
  2. Step 2: Convert to fraction form
    216,206,377.71/324,826,945.25 = 138,635,261.08/x
  3. Step 3: Cross multiply
    216,206,377.71x = 324,826,945.25 × 138,635,261.08
  4. Step 4: Simplify right side
    216,206,377.71x = 45,032,468,360,552,624
  5. Step 5: Solve for x
    x = 45,032,468,360,552,624/216,206,377.71
  6. Step 6: Final answer
    x = 208,284,643.76

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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.