Home / 142,315,862,705.96-196,399,504,072.07-78,086,569,992.23

Finding the Fourth Proportional to 142,315,862,705.96, 196,399,504,072.07 and 78,086,569,992.23

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Solution

The fourth proportional to 142,315,862,705.96, 196,399,504,072.07 and 78,086,569,992.23 is: 107,761,449,283.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,315,862,705.96 : 196,399,504,072.07 = 78,086,569,992.23 : x
  2. Step 2: Convert to fraction form
    142,315,862,705.96/196,399,504,072.07 = 78,086,569,992.23/x
  3. Step 3: Cross multiply
    142,315,862,705.96x = 196,399,504,072.07 × 78,086,569,992.23
  4. Step 4: Simplify right side
    142,315,862,705.96x = 15,336,163,621,162,562,093,056
  5. Step 5: Solve for x
    x = 15,336,163,621,162,562,093,056/142,315,862,705.96
  6. Step 6: Final answer
    x = 107,761,449,283.06

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1.5x scale

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.