Home / 303,959,661.72-419,670,242.10-192,549,369.21

Finding the Fourth Proportional to 303,959,661.72, 419,670,242.10 and 192,549,369.21

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Solution

The fourth proportional to 303,959,661.72, 419,670,242.10 and 192,549,369.21 is: 265,848,566.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,959,661.72 : 419,670,242.10 = 192,549,369.21 : x
  2. Step 2: Convert to fraction form
    303,959,661.72/419,670,242.10 = 192,549,369.21/x
  3. Step 3: Cross multiply
    303,959,661.72x = 419,670,242.10 × 192,549,369.21
  4. Step 4: Simplify right side
    303,959,661.72x = 80,807,240,392,562,992
  5. Step 5: Solve for x
    x = 80,807,240,392,562,992/303,959,661.72
  6. Step 6: Final answer
    x = 265,848,566.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.