Home / 81,859,028.22-112,965,819.75-45,189,900.54

Finding the Fourth Proportional to 81,859,028.22, 112,965,819.75 and 45,189,900.54

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Solution

The fourth proportional to 81,859,028.22, 112,965,819.75 and 45,189,900.54 is: 62,362,261.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,859,028.22 : 112,965,819.75 = 45,189,900.54 : x
  2. Step 2: Convert to fraction form
    81,859,028.22/112,965,819.75 = 45,189,900.54/x
  3. Step 3: Cross multiply
    81,859,028.22x = 112,965,819.75 × 45,189,900.54
  4. Step 4: Simplify right side
    81,859,028.22x = 5,104,914,158,922,068
  5. Step 5: Solve for x
    x = 5,104,914,158,922,068/81,859,028.22
  6. Step 6: Final answer
    x = 62,362,261.93

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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.