Home / 121,127,458.20-181,691,187.30-111,774,096.60

Finding the Fourth Proportional to 121,127,458.20, 181,691,187.30 and 111,774,096.60

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Solution

The fourth proportional to 121,127,458.20, 181,691,187.30 and 111,774,096.60 is: 167,661,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,127,458.20 : 181,691,187.30 = 111,774,096.60 : x
  2. Step 2: Convert to fraction form
    121,127,458.20/181,691,187.30 = 111,774,096.60/x
  3. Step 3: Cross multiply
    121,127,458.20x = 181,691,187.30 × 111,774,096.60
  4. Step 4: Simplify right side
    121,127,458.20x = 20,308,368,320,638,892
  5. Step 5: Solve for x
    x = 20,308,368,320,638,892/121,127,458.20
  6. Step 6: Final answer
    x = 167,661,144.90

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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.