Home / 121,619,207.22-167,836,686.84-66,611,520.78

Finding the Fourth Proportional to 121,619,207.22, 167,836,686.84 and 66,611,520.78

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Solution

The fourth proportional to 121,619,207.22, 167,836,686.84 and 66,611,520.78 is: 91,925,093.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,619,207.22 : 167,836,686.84 = 66,611,520.78 : x
  2. Step 2: Convert to fraction form
    121,619,207.22/167,836,686.84 = 66,611,520.78/x
  3. Step 3: Cross multiply
    121,619,207.22x = 167,836,686.84 × 66,611,520.78
  4. Step 4: Simplify right side
    121,619,207.22x = 11,179,856,953,089,012
  5. Step 5: Solve for x
    x = 11,179,856,953,089,012/121,619,207.22
  6. Step 6: Final answer
    x = 91,925,093.15

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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.