Home / 140,379,642.41-193,658,625.27-90,836,009.01

Finding the Fourth Proportional to 140,379,642.41, 193,658,625.27 and 90,836,009.01

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Solution

The fourth proportional to 140,379,642.41, 193,658,625.27 and 90,836,009.01 is: 125,311,450.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,379,642.41 : 193,658,625.27 = 90,836,009.01 : x
  2. Step 2: Convert to fraction form
    140,379,642.41/193,658,625.27 = 90,836,009.01/x
  3. Step 3: Cross multiply
    140,379,642.41x = 193,658,625.27 × 90,836,009.01
  4. Step 4: Simplify right side
    140,379,642.41x = 17,591,176,629,889,936
  5. Step 5: Solve for x
    x = 17,591,176,629,889,936/140,379,642.41
  6. Step 6: Final answer
    x = 125,311,450.64

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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.