Home / 138,846,930.80-191,628,283.34-85,940,608.32

Finding the Fourth Proportional to 138,846,930.80, 191,628,283.34 and 85,940,608.32

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Solution

The fourth proportional to 138,846,930.80, 191,628,283.34 and 85,940,608.32 is: 118,610,120.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,846,930.80 : 191,628,283.34 = 85,940,608.32 : x
  2. Step 2: Convert to fraction form
    138,846,930.80/191,628,283.34 = 85,940,608.32/x
  3. Step 3: Cross multiply
    138,846,930.80x = 191,628,283.34 × 85,940,608.32
  4. Step 4: Simplify right side
    138,846,930.80x = 16,468,651,241,771,772
  5. Step 5: Solve for x
    x = 16,468,651,241,771,772/138,846,930.80
  6. Step 6: Final answer
    x = 118,610,120.85

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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.