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Finding the Fourth Proportional to 213,978,703.63, 321,077,877.29 and 101,931,442.55

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Solution

The fourth proportional to 213,978,703.63, 321,077,877.29 and 101,931,442.55 is: 152,949,478.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,978,703.63 : 321,077,877.29 = 101,931,442.55 : x
  2. Step 2: Convert to fraction form
    213,978,703.63/321,077,877.29 = 101,931,442.55/x
  3. Step 3: Cross multiply
    213,978,703.63x = 321,077,877.29 × 101,931,442.55
  4. Step 4: Simplify right side
    213,978,703.63x = 32,727,931,202,551,928
  5. Step 5: Solve for x
    x = 32,727,931,202,551,928/213,978,703.63
  6. Step 6: Final answer
    x = 152,949,478.84

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