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Finding the Fourth Proportional to 213,978,706.88, 321,077,882.16 and 101,931,445.80

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Solution

The fourth proportional to 213,978,706.88, 321,077,882.16 and 101,931,445.80 is: 152,949,483.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,978,706.88 : 321,077,882.16 = 101,931,445.80 : x
  2. Step 2: Convert to fraction form
    213,978,706.88/321,077,882.16 = 101,931,445.80/x
  3. Step 3: Cross multiply
    213,978,706.88x = 321,077,882.16 × 101,931,445.80
  4. Step 4: Simplify right side
    213,978,706.88x = 32,727,932,742,970,828
  5. Step 5: Solve for x
    x = 32,727,932,742,970,828/213,978,706.88
  6. Step 6: Final answer
    x = 152,949,483.72

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Why These Related Problems?

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