Home / 142,315,862,711.27-196,399,504,079.42-78,086,569,997.55

Finding the Fourth Proportional to 142,315,862,711.27, 196,399,504,079.42 and 78,086,569,997.55

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Solution

The fourth proportional to 142,315,862,711.27, 196,399,504,079.42 and 78,086,569,997.55 is: 107,761,449,290.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,315,862,711.27 : 196,399,504,079.42 = 78,086,569,997.55 : x
  2. Step 2: Convert to fraction form
    142,315,862,711.27/196,399,504,079.42 = 78,086,569,997.55/x
  3. Step 3: Cross multiply
    142,315,862,711.27x = 196,399,504,079.42 × 78,086,569,997.55
  4. Step 4: Simplify right side
    142,315,862,711.27x = 15,336,163,622,780,756,033,536
  5. Step 5: Solve for x
    x = 15,336,163,622,780,756,033,536/142,315,862,711.27
  6. Step 6: Final answer
    x = 107,761,449,290.41

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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.