Home / 139,166,990.88-192,054,840.66-83,394,029.40

Finding the Fourth Proportional to 139,166,990.88, 192,054,840.66 and 83,394,029.40

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Solution

The fourth proportional to 139,166,990.88, 192,054,840.66 and 83,394,029.40 is: 115,086,393.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,166,990.88 : 192,054,840.66 = 83,394,029.40 : x
  2. Step 2: Convert to fraction form
    139,166,990.88/192,054,840.66 = 83,394,029.40/x
  3. Step 3: Cross multiply
    139,166,990.88x = 192,054,840.66 × 83,394,029.40
  4. Step 4: Simplify right side
    139,166,990.88x = 16,016,227,028,412,356
  5. Step 5: Solve for x
    x = 16,016,227,028,412,356/139,166,990.88
  6. Step 6: Final answer
    x = 115,086,393.17

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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.