Home / 121,322,116.80-181,983,175.20-91,089,028.80

Finding the Fourth Proportional to 121,322,116.80, 181,983,175.20 and 91,089,028.80

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Solution

The fourth proportional to 121,322,116.80, 181,983,175.20 and 91,089,028.80 is: 136,633,543.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,322,116.80 : 181,983,175.20 = 91,089,028.80 : x
  2. Step 2: Convert to fraction form
    121,322,116.80/181,983,175.20 = 91,089,028.80/x
  3. Step 3: Cross multiply
    121,322,116.80x = 181,983,175.20 × 91,089,028.80
  4. Step 4: Simplify right side
    121,322,116.80x = 16,576,670,686,908,244
  5. Step 5: Solve for x
    x = 16,576,670,686,908,244/121,322,116.80
  6. Step 6: Final answer
    x = 136,633,543.20

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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.