Home / 200,619,369.75-300,537,453.56-138,223,490.84

Finding the Fourth Proportional to 200,619,369.75, 300,537,453.56 and 138,223,490.84

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Solution

The fourth proportional to 200,619,369.75, 300,537,453.56 and 138,223,490.84 is: 207,065,429.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,619,369.75 : 300,537,453.56 = 138,223,490.84 : x
  2. Step 2: Convert to fraction form
    200,619,369.75/300,537,453.56 = 138,223,490.84/x
  3. Step 3: Cross multiply
    200,619,369.75x = 300,537,453.56 × 138,223,490.84
  4. Step 4: Simplify right side
    200,619,369.75x = 41,541,335,957,033,784
  5. Step 5: Solve for x
    x = 41,541,335,957,033,784/200,619,369.75
  6. Step 6: Final answer
    x = 207,065,429.47

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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.