Home / 212,191,879.45-318,172,293.94-73,980,313.82

Finding the Fourth Proportional to 212,191,879.45, 318,172,293.94 and 73,980,313.82

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Solution

The fourth proportional to 212,191,879.45, 318,172,293.94 and 73,980,313.82 is: 110,930,193.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,191,879.45 : 318,172,293.94 = 73,980,313.82 : x
  2. Step 2: Convert to fraction form
    212,191,879.45/318,172,293.94 = 73,980,313.82/x
  3. Step 3: Cross multiply
    212,191,879.45x = 318,172,293.94 × 73,980,313.82
  4. Step 4: Simplify right side
    212,191,879.45x = 23,538,486,155,647,996
  5. Step 5: Solve for x
    x = 23,538,486,155,647,996/212,191,879.45
  6. Step 6: Final answer
    x = 110,930,193.07

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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.