Home / 142,315,862,710.77-196,399,504,078.73-78,086,569,997.05

Finding the Fourth Proportional to 142,315,862,710.77, 196,399,504,078.73 and 78,086,569,997.05

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Solution

The fourth proportional to 142,315,862,710.77, 196,399,504,078.73 and 78,086,569,997.05 is: 107,761,449,289.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,315,862,710.77 : 196,399,504,078.73 = 78,086,569,997.05 : x
  2. Step 2: Convert to fraction form
    142,315,862,710.77/196,399,504,078.73 = 78,086,569,997.05/x
  3. Step 3: Cross multiply
    142,315,862,710.77x = 196,399,504,078.73 × 78,086,569,997.05
  4. Step 4: Simplify right side
    142,315,862,710.77x = 15,336,163,622,628,674,764,800
  5. Step 5: Solve for x
    x = 15,336,163,622,628,674,764,800/142,315,862,710.77
  6. Step 6: Final answer
    x = 107,761,449,289.72

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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.