Home / 121,638,629.08-167,859,971.82-65,882,662.48

Finding the Fourth Proportional to 121,638,629.08, 167,859,971.82 and 65,882,662.48

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Solution

The fourth proportional to 121,638,629.08, 167,859,971.82 and 65,882,662.48 is: 90,917,350.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,638,629.08 : 167,859,971.82 = 65,882,662.48 : x
  2. Step 2: Convert to fraction form
    121,638,629.08/167,859,971.82 = 65,882,662.48/x
  3. Step 3: Cross multiply
    121,638,629.08x = 167,859,971.82 × 65,882,662.48
  4. Step 4: Simplify right side
    121,638,629.08x = 11,059,061,867,319,370
  5. Step 5: Solve for x
    x = 11,059,061,867,319,370/121,638,629.08
  6. Step 6: Final answer
    x = 90,917,350.44

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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.