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Finding the Fourth Proportional to 213,978,703.88, 321,077,877.66 and 101,931,442.80

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Solution

The fourth proportional to 213,978,703.88, 321,077,877.66 and 101,931,442.80 is: 152,949,479.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,978,703.88 : 321,077,877.66 = 101,931,442.80 : x
  2. Step 2: Convert to fraction form
    213,978,703.88/321,077,877.66 = 101,931,442.80/x
  3. Step 3: Cross multiply
    213,978,703.88x = 321,077,877.66 × 101,931,442.80
  4. Step 4: Simplify right side
    213,978,703.88x = 32,727,931,321,045,688
  5. Step 5: Solve for x
    x = 32,727,931,321,045,688/213,978,703.88
  6. Step 6: Final answer
    x = 152,949,479.22

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Why These Related Problems?

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