Home / 142,655,738,852.53-196,865,046,257.22-78,427,555,922.53

Finding the Fourth Proportional to 142,655,738,852.53, 196,865,046,257.22 and 78,427,555,922.53

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Solution

The fourth proportional to 142,655,738,852.53, 196,865,046,257.22 and 78,427,555,922.53 is: 108,230,096,796.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,655,738,852.53 : 196,865,046,257.22 = 78,427,555,922.53 : x
  2. Step 2: Convert to fraction form
    142,655,738,852.53/196,865,046,257.22 = 78,427,555,922.53/x
  3. Step 3: Cross multiply
    142,655,738,852.53x = 196,865,046,257.22 × 78,427,555,922.53
  4. Step 4: Simplify right side
    142,655,738,852.53x = 15,439,644,424,529,577,508,864
  5. Step 5: Solve for x
    x = 15,439,644,424,529,577,508,864/142,655,738,852.53
  6. Step 6: Final answer
    x = 108,230,096,796.11

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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.