Home / 321,112,912.60-481,622,129.70-91,105,247.80

Finding the Fourth Proportional to 321,112,912.60, 481,622,129.70 and 91,105,247.80

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Solution

The fourth proportional to 321,112,912.60, 481,622,129.70 and 91,105,247.80 is: 136,644,469.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,112,912.60 : 481,622,129.70 = 91,105,247.80 : x
  2. Step 2: Convert to fraction form
    321,112,912.60/481,622,129.70 = 91,105,247.80/x
  3. Step 3: Cross multiply
    321,112,912.60x = 481,622,129.70 × 91,105,247.80
  4. Step 4: Simplify right side
    321,112,912.60x = 43,878,303,472,282,240
  5. Step 5: Solve for x
    x = 43,878,303,472,282,240/321,112,912.60
  6. Step 6: Final answer
    x = 136,644,469.13

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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.