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Finding the Fourth Proportional to 268,187,978.31, 370,066,205.21 and 155,176,896.57

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Solution

The fourth proportional to 268,187,978.31, 370,066,205.21 and 155,176,896.57 is: 214,124,904.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,187,978.31 : 370,066,205.21 = 155,176,896.57 : x
  2. Step 2: Convert to fraction form
    268,187,978.31/370,066,205.21 = 155,176,896.57/x
  3. Step 3: Cross multiply
    268,187,978.31x = 370,066,205.21 × 155,176,896.57
  4. Step 4: Simplify right side
    268,187,978.31x = 57,425,725,249,148,672
  5. Step 5: Solve for x
    x = 57,425,725,249,148,672/268,187,978.31
  6. Step 6: Final answer
    x = 214,124,904.52

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