Home / 111,667,940.20-167,501,910.30-85,839,907.60

Finding the Fourth Proportional to 111,667,940.20, 167,501,910.30 and 85,839,907.60

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Solution

The fourth proportional to 111,667,940.20, 167,501,910.30 and 85,839,907.60 is: 128,759,861.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,667,940.20 : 167,501,910.30 = 85,839,907.60 : x
  2. Step 2: Convert to fraction form
    111,667,940.20/167,501,910.30 = 85,839,907.60/x
  3. Step 3: Cross multiply
    111,667,940.20x = 167,501,910.30 × 85,839,907.60
  4. Step 4: Simplify right side
    111,667,940.20x = 14,378,348,502,975,488
  5. Step 5: Solve for x
    x = 14,378,348,502,975,488/111,667,940.20
  6. Step 6: Final answer
    x = 128,759,861.40

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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.