Home / 121,116,728.80-181,458,580.20-73,706,942.80

Finding the Fourth Proportional to 121,116,728.80, 181,458,580.20 and 73,706,942.80

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Solution

The fourth proportional to 121,116,728.80, 181,458,580.20 and 73,706,942.80 is: 110,428,652.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,116,728.80 : 181,458,580.20 = 73,706,942.80 : x
  2. Step 2: Convert to fraction form
    121,116,728.80/181,458,580.20 = 73,706,942.80/x
  3. Step 3: Cross multiply
    121,116,728.80x = 181,458,580.20 × 73,706,942.80
  4. Step 4: Simplify right side
    121,116,728.80x = 13,374,757,191,370,612
  5. Step 5: Solve for x
    x = 13,374,757,191,370,612/121,116,728.80
  6. Step 6: Final answer
    x = 110,428,652.79

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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.