Home / 211,171,428.80-316,505,200.80-189,504,382.40

Finding the Fourth Proportional to 211,171,428.80, 316,505,200.80 and 189,504,382.40

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Solution

The fourth proportional to 211,171,428.80, 316,505,200.80 and 189,504,382.40 is: 284,030,481.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,171,428.80 : 316,505,200.80 = 189,504,382.40 : x
  2. Step 2: Convert to fraction form
    211,171,428.80/316,505,200.80 = 189,504,382.40/x
  3. Step 3: Cross multiply
    211,171,428.80x = 316,505,200.80 × 189,504,382.40
  4. Step 4: Simplify right side
    211,171,428.80x = 59,979,122,603,991,992
  5. Step 5: Solve for x
    x = 59,979,122,603,991,992/211,171,428.80
  6. Step 6: Final answer
    x = 284,030,481.51

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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.