Home / 858,512,260.40-1,287,768,390.60-212,280,004.40

Finding the Fourth Proportional to 858,512,260.40, 1,287,768,390.60 and 212,280,004.40

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Solution

The fourth proportional to 858,512,260.40, 1,287,768,390.60 and 212,280,004.40 is: 318,420,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,512,260.40 : 1,287,768,390.60 = 212,280,004.40 : x
  2. Step 2: Convert to fraction form
    858,512,260.40/1,287,768,390.60 = 212,280,004.40/x
  3. Step 3: Cross multiply
    858,512,260.40x = 1,287,768,390.60 × 212,280,004.40
  4. Step 4: Simplify right side
    858,512,260.40x = 273,367,479,622,748,896
  5. Step 5: Solve for x
    x = 273,367,479,622,748,896/858,512,260.40
  6. Step 6: Final answer
    x = 318,420,006.60

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