Home / 121,542,819.85-167,745,058.01-69,319,884.25

Finding the Fourth Proportional to 121,542,819.85, 167,745,058.01 and 69,319,884.25

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Solution

The fourth proportional to 121,542,819.85, 167,745,058.01 and 69,319,884.25 is: 95,670,546.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,542,819.85 : 167,745,058.01 = 69,319,884.25 : x
  2. Step 2: Convert to fraction form
    121,542,819.85/167,745,058.01 = 69,319,884.25/x
  3. Step 3: Cross multiply
    121,542,819.85x = 167,745,058.01 × 69,319,884.25
  4. Step 4: Simplify right side
    121,542,819.85x = 11,628,068,004,762,734
  5. Step 5: Solve for x
    x = 11,628,068,004,762,734/121,542,819.85
  6. Step 6: Final answer
    x = 95,670,546.55

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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.