Home / 121,456,922.40-182,185,383.60-109,741,600.80

Finding the Fourth Proportional to 121,456,922.40, 182,185,383.60 and 109,741,600.80

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Solution

The fourth proportional to 121,456,922.40, 182,185,383.60 and 109,741,600.80 is: 164,612,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,456,922.40 : 182,185,383.60 = 109,741,600.80 : x
  2. Step 2: Convert to fraction form
    121,456,922.40/182,185,383.60 = 109,741,600.80/x
  3. Step 3: Cross multiply
    121,456,922.40x = 182,185,383.60 × 109,741,600.80
  4. Step 4: Simplify right side
    121,456,922.40x = 19,993,315,638,626,064
  5. Step 5: Solve for x
    x = 19,993,315,638,626,064/121,456,922.40
  6. Step 6: Final answer
    x = 164,612,401.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.