Home / 209,284,796.64-313,716,164.82-131,617,206.57

Finding the Fourth Proportional to 209,284,796.64, 313,716,164.82 and 131,617,206.57

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Solution

The fourth proportional to 209,284,796.64, 313,716,164.82 and 131,617,206.57 is: 197,293,095.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,284,796.64 : 313,716,164.82 = 131,617,206.57 : x
  2. Step 2: Convert to fraction form
    209,284,796.64/313,716,164.82 = 131,617,206.57/x
  3. Step 3: Cross multiply
    209,284,796.64x = 313,716,164.82 × 131,617,206.57
  4. Step 4: Simplify right side
    209,284,796.64x = 41,290,445,269,462,104
  5. Step 5: Solve for x
    x = 41,290,445,269,462,104/209,284,796.64
  6. Step 6: Final answer
    x = 197,293,095.02

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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.