Home / 121,370,104.92-167,489,212.14-66,365,830.20

Finding the Fourth Proportional to 121,370,104.92, 167,489,212.14 and 66,365,830.20

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Solution

The fourth proportional to 121,370,104.92, 167,489,212.14 and 66,365,830.20 is: 91,584,007.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,370,104.92 : 167,489,212.14 = 66,365,830.20 : x
  2. Step 2: Convert to fraction form
    121,370,104.92/167,489,212.14 = 66,365,830.20/x
  3. Step 3: Cross multiply
    121,370,104.92x = 167,489,212.14 × 66,365,830.20
  4. Step 4: Simplify right side
    121,370,104.92x = 11,115,560,613,215,018
  5. Step 5: Solve for x
    x = 11,115,560,613,215,018/121,370,104.92
  6. Step 6: Final answer
    x = 91,584,007.61

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1.5x scale

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.