Home / 121,072,940.24-167,084,187.08-66,072,339.60

Finding the Fourth Proportional to 121,072,940.24, 167,084,187.08 and 66,072,339.60

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Solution

The fourth proportional to 121,072,940.24, 167,084,187.08 and 66,072,339.60 is: 91,181,754.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,072,940.24 : 167,084,187.08 = 66,072,339.60 : x
  2. Step 2: Convert to fraction form
    121,072,940.24/167,084,187.08 = 66,072,339.60/x
  3. Step 3: Cross multiply
    121,072,940.24x = 167,084,187.08 × 66,072,339.60
  4. Step 4: Simplify right side
    121,072,940.24x = 11,039,643,150,539,694
  5. Step 5: Solve for x
    x = 11,039,643,150,539,694/121,072,940.24
  6. Step 6: Final answer
    x = 91,181,754.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.