Home / 216,942,872.52-325,378,329.66-71,378,208.84

Finding the Fourth Proportional to 216,942,872.52, 325,378,329.66 and 71,378,208.84

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Solution

The fourth proportional to 216,942,872.52, 325,378,329.66 and 71,378,208.84 is: 107,055,475.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,942,872.52 : 325,378,329.66 = 71,378,208.84 : x
  2. Step 2: Convert to fraction form
    216,942,872.52/325,378,329.66 = 71,378,208.84/x
  3. Step 3: Cross multiply
    216,942,872.52x = 325,378,329.66 × 71,378,208.84
  4. Step 4: Simplify right side
    216,942,872.52x = 23,224,922,366,481,848
  5. Step 5: Solve for x
    x = 23,224,922,366,481,848/216,942,872.52
  6. Step 6: Final answer
    x = 107,055,475.47

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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.