Home / 340,770,144.45-511,155,213.72-81,985,361.67

Finding the Fourth Proportional to 340,770,144.45, 511,155,213.72 and 81,985,361.67

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Solution

The fourth proportional to 340,770,144.45, 511,155,213.72 and 81,985,361.67 is: 122,978,041.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,770,144.45 : 511,155,213.72 = 81,985,361.67 : x
  2. Step 2: Convert to fraction form
    340,770,144.45/511,155,213.72 = 81,985,361.67/x
  3. Step 3: Cross multiply
    340,770,144.45x = 511,155,213.72 × 81,985,361.67
  4. Step 4: Simplify right side
    340,770,144.45x = 41,907,245,066,340,352
  5. Step 5: Solve for x
    x = 41,907,245,066,340,352/340,770,144.45
  6. Step 6: Final answer
    x = 122,978,041.79

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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.