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Finding the Fourth Proportional to 380,202,112.34, 524,588,978.97 and 215,189,681.84

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Solution

The fourth proportional to 380,202,112.34, 524,588,978.97 and 215,189,681.84 is: 296,910,858.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,202,112.34 : 524,588,978.97 = 215,189,681.84 : x
  2. Step 2: Convert to fraction form
    380,202,112.34/524,588,978.97 = 215,189,681.84/x
  3. Step 3: Cross multiply
    380,202,112.34x = 524,588,978.97 × 215,189,681.84
  4. Step 4: Simplify right side
    380,202,112.34x = 112,886,135,478,701,824
  5. Step 5: Solve for x
    x = 112,886,135,478,701,824/380,202,112.34
  6. Step 6: Final answer
    x = 296,910,858.24

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