Home / 84,185,614-115,332,361.24-81,038,143.44

Finding the Fourth Proportional to 84,185,614, 115,332,361.24 and 81,038,143.44

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Solution

The fourth proportional to 84,185,614, 115,332,361.24 and 81,038,143.44 is: 111,020,398.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,185,614 : 115,332,361.24 = 81,038,143.44 : x
  2. Step 2: Convert to fraction form
    84,185,614/115,332,361.24 = 81,038,143.44/x
  3. Step 3: Cross multiply
    84,185,614x = 115,332,361.24 × 81,038,143.44
  4. Step 4: Simplify right side
    84,185,614x = 9,346,320,433,441,016
  5. Step 5: Solve for x
    x = 9,346,320,433,441,016/84,185,614
  6. Step 6: Final answer
    x = 111,020,398.73

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.