Home / 78,279,372.41-108,022,574.33-43,474,304.81

Finding the Fourth Proportional to 78,279,372.41, 108,022,574.33 and 43,474,304.81

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Solution

The fourth proportional to 78,279,372.41, 108,022,574.33 and 43,474,304.81 is: 59,992,896.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,279,372.41 : 108,022,574.33 = 43,474,304.81 : x
  2. Step 2: Convert to fraction form
    78,279,372.41/108,022,574.33 = 43,474,304.81/x
  3. Step 3: Cross multiply
    78,279,372.41x = 108,022,574.33 × 43,474,304.81
  4. Step 4: Simplify right side
    78,279,372.41x = 4,696,206,322,999,015
  5. Step 5: Solve for x
    x = 4,696,206,322,999,015/78,279,372.41
  6. Step 6: Final answer
    x = 59,992,896.96

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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.