Home / 216,728,978,804.12-299,018,515,415.07-125,244,200,678.36

Finding the Fourth Proportional to 216,728,978,804.12, 299,018,515,415.07 and 125,244,200,678.36

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Solution

The fourth proportional to 216,728,978,804.12, 299,018,515,415.07 and 125,244,200,678.36 is: 172,798,004,022.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,728,978,804.12 : 299,018,515,415.07 = 125,244,200,678.36 : x
  2. Step 2: Convert to fraction form
    216,728,978,804.12/299,018,515,415.07 = 125,244,200,678.36/x
  3. Step 3: Cross multiply
    216,728,978,804.12x = 299,018,515,415.07 × 125,244,200,678.36
  4. Step 4: Simplify right side
    216,728,978,804.12x = 37,450,334,951,190,311,206,912
  5. Step 5: Solve for x
    x = 37,450,334,951,190,311,206,912/216,728,978,804.12
  6. Step 6: Final answer
    x = 172,798,004,022.52

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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.