Home / 777,619,120.85-1,166,429,803.89-317,557,290.15

Finding the Fourth Proportional to 777,619,120.85, 1,166,429,803.89 and 317,557,290.15

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Solution

The fourth proportional to 777,619,120.85, 1,166,429,803.89 and 317,557,290.15 is: 476,336,393.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,619,120.85 : 1,166,429,803.89 = 317,557,290.15 : x
  2. Step 2: Convert to fraction form
    777,619,120.85/1,166,429,803.89 = 317,557,290.15/x
  3. Step 3: Cross multiply
    777,619,120.85x = 1,166,429,803.89 × 317,557,290.15
  4. Step 4: Simplify right side
    777,619,120.85x = 370,408,287,673,504,320
  5. Step 5: Solve for x
    x = 370,408,287,673,504,320/777,619,120.85
  6. Step 6: Final answer
    x = 476,336,393.67

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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.