Home / 171,428,550.44-257,148,158.51-81,568,208.70

Finding the Fourth Proportional to 171,428,550.44, 257,148,158.51 and 81,568,208.70

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Solution

The fourth proportional to 171,428,550.44, 257,148,158.51 and 81,568,208.70 is: 122,354,850.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,428,550.44 : 257,148,158.51 = 81,568,208.70 : x
  2. Step 2: Convert to fraction form
    171,428,550.44/257,148,158.51 = 81,568,208.70/x
  3. Step 3: Cross multiply
    171,428,550.44x = 257,148,158.51 × 81,568,208.70
  4. Step 4: Simplify right side
    171,428,550.44x = 20,975,114,659,756,520
  5. Step 5: Solve for x
    x = 20,975,114,659,756,520/171,428,550.44
  6. Step 6: Final answer
    x = 122,354,850.50

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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.