Home / 138,785,583.06-191,525,229.81-76,906,954.98

Finding the Fourth Proportional to 138,785,583.06, 191,525,229.81 and 76,906,954.98

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Solution

The fourth proportional to 138,785,583.06, 191,525,229.81 and 76,906,954.98 is: 106,132,221.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,785,583.06 : 191,525,229.81 = 76,906,954.98 : x
  2. Step 2: Convert to fraction form
    138,785,583.06/191,525,229.81 = 76,906,954.98/x
  3. Step 3: Cross multiply
    138,785,583.06x = 191,525,229.81 × 76,906,954.98
  4. Step 4: Simplify right side
    138,785,583.06x = 14,729,622,226,531,824
  5. Step 5: Solve for x
    x = 14,729,622,226,531,824/138,785,583.06
  6. Step 6: Final answer
    x = 106,132,221.39

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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.