Home / 111,781,619.20-167,336,505.60-66,320,012.80

Finding the Fourth Proportional to 111,781,619.20, 167,336,505.60 and 66,320,012.80

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Solution

The fourth proportional to 111,781,619.20, 167,336,505.60 and 66,320,012.80 is: 99,280,716.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,781,619.20 : 167,336,505.60 = 66,320,012.80 : x
  2. Step 2: Convert to fraction form
    111,781,619.20/167,336,505.60 = 66,320,012.80/x
  3. Step 3: Cross multiply
    111,781,619.20x = 167,336,505.60 × 66,320,012.80
  4. Step 4: Simplify right side
    111,781,619.20x = 11,097,759,193,299,270
  5. Step 5: Solve for x
    x = 11,097,759,193,299,270/111,781,619.20
  6. Step 6: Final answer
    x = 99,280,716.03

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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.