Home / 192,199,347-288,403,974.06-81,517,800.60

Finding the Fourth Proportional to 192,199,347, 288,403,974.06 and 81,517,800.60

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Solution

The fourth proportional to 192,199,347, 288,403,974.06 and 81,517,800.60 is: 122,321,215.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,199,347 : 288,403,974.06 = 81,517,800.60 : x
  2. Step 2: Convert to fraction form
    192,199,347/288,403,974.06 = 81,517,800.60/x
  3. Step 3: Cross multiply
    192,199,347x = 288,403,974.06 × 81,517,800.60
  4. Step 4: Simplify right side
    192,199,347x = 23,510,057,649,670,652
  5. Step 5: Solve for x
    x = 23,510,057,649,670,652/192,199,347
  6. Step 6: Final answer
    x = 122,321,215.01

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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.