Home / 255,064,850.71-351,978,170.61-142,040,172.21

Finding the Fourth Proportional to 255,064,850.71, 351,978,170.61 and 142,040,172.21

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Solution

The fourth proportional to 255,064,850.71, 351,978,170.61 and 142,040,172.21 is: 196,009,131.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,064,850.71 : 351,978,170.61 = 142,040,172.21 : x
  2. Step 2: Convert to fraction form
    255,064,850.71/351,978,170.61 = 142,040,172.21/x
  3. Step 3: Cross multiply
    255,064,850.71x = 351,978,170.61 × 142,040,172.21
  4. Step 4: Simplify right side
    255,064,850.71x = 49,995,039,966,816,480
  5. Step 5: Solve for x
    x = 49,995,039,966,816,480/255,064,850.71
  6. Step 6: Final answer
    x = 196,009,131.91

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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.