Home / 121,509,176.25-167,682,663.23-66,505,032.75

Finding the Fourth Proportional to 121,509,176.25, 167,682,663.23 and 66,505,032.75

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Solution

The fourth proportional to 121,509,176.25, 167,682,663.23 and 66,505,032.75 is: 91,776,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,509,176.25 : 167,682,663.23 = 66,505,032.75 : x
  2. Step 2: Convert to fraction form
    121,509,176.25/167,682,663.23 = 66,505,032.75/x
  3. Step 3: Cross multiply
    121,509,176.25x = 167,682,663.23 × 66,505,032.75
  4. Step 4: Simplify right side
    121,509,176.25x = 11,151,741,009,385,846
  5. Step 5: Solve for x
    x = 11,151,741,009,385,846/121,509,176.25
  6. Step 6: Final answer
    x = 91,776,945.20

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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.