Home / 211,907,933.80-317,861,900.70-154,512,305.80

Finding the Fourth Proportional to 211,907,933.80, 317,861,900.70 and 154,512,305.80

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Solution

The fourth proportional to 211,907,933.80, 317,861,900.70 and 154,512,305.80 is: 231,768,458.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,907,933.80 : 317,861,900.70 = 154,512,305.80 : x
  2. Step 2: Convert to fraction form
    211,907,933.80/317,861,900.70 = 154,512,305.80/x
  3. Step 3: Cross multiply
    211,907,933.80x = 317,861,900.70 × 154,512,305.80
  4. Step 4: Simplify right side
    211,907,933.80x = 49,113,575,203,127,640
  5. Step 5: Solve for x
    x = 49,113,575,203,127,640/211,907,933.80
  6. Step 6: Final answer
    x = 231,768,458.70

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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.