Home / 67,084,090.72-100,628,378.09-18,557,880.86

Finding the Fourth Proportional to 67,084,090.72, 100,628,378.09 and 18,557,880.86

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Solution

The fourth proportional to 67,084,090.72, 100,628,378.09 and 18,557,880.86 is: 27,837,441.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,084,090.72 : 100,628,378.09 = 18,557,880.86 : x
  2. Step 2: Convert to fraction form
    67,084,090.72/100,628,378.09 = 18,557,880.86/x
  3. Step 3: Cross multiply
    67,084,090.72x = 100,628,378.09 × 18,557,880.86
  4. Step 4: Simplify right side
    67,084,090.72x = 1,867,449,451,133,323
  5. Step 5: Solve for x
    x = 1,867,449,451,133,323/67,084,090.72
  6. Step 6: Final answer
    x = 27,837,441.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.