Home / 777,619,128.56-1,166,429,815.43-317,557,297.87

Finding the Fourth Proportional to 777,619,128.56, 1,166,429,815.43 and 317,557,297.87

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Solution

The fourth proportional to 777,619,128.56, 1,166,429,815.43 and 317,557,297.87 is: 476,336,405.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,619,128.56 : 1,166,429,815.43 = 317,557,297.87 : x
  2. Step 2: Convert to fraction form
    777,619,128.56/1,166,429,815.43 = 317,557,297.87/x
  3. Step 3: Cross multiply
    777,619,128.56x = 1,166,429,815.43 × 317,557,297.87
  4. Step 4: Simplify right side
    777,619,128.56x = 370,408,300,342,953,664
  5. Step 5: Solve for x
    x = 370,408,300,342,953,664/777,619,128.56
  6. Step 6: Final answer
    x = 476,336,405.24

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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.