Home / 121,515,852.75-167,693,451.44-66,510,528.27

Finding the Fourth Proportional to 121,515,852.75, 167,693,451.44 and 66,510,528.27

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Solution

The fourth proportional to 121,515,852.75, 167,693,451.44 and 66,510,528.27 is: 91,785,390.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,515,852.75 : 167,693,451.44 = 66,510,528.27 : x
  2. Step 2: Convert to fraction form
    121,515,852.75/167,693,451.44 = 66,510,528.27/x
  3. Step 3: Cross multiply
    121,515,852.75x = 167,693,451.44 × 66,510,528.27
  4. Step 4: Simplify right side
    121,515,852.75x = 11,153,380,042,361,440
  5. Step 5: Solve for x
    x = 11,153,380,042,361,440/121,515,852.75
  6. Step 6: Final answer
    x = 91,785,390.88

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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.