Home / 5,358,603,917.57-7,394,879,536.92-2,979,690,778.76

Finding the Fourth Proportional to 5,358,603,917.57, 7,394,879,536.92 and 2,979,690,778.76

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Solution

The fourth proportional to 5,358,603,917.57, 7,394,879,536.92 and 2,979,690,778.76 is: 4,111,976,683.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358,603,917.57 : 7,394,879,536.92 = 2,979,690,778.76 : x
  2. Step 2: Convert to fraction form
    5,358,603,917.57/7,394,879,536.92 = 2,979,690,778.76/x
  3. Step 3: Cross multiply
    5,358,603,917.57x = 7,394,879,536.92 × 2,979,690,778.76
  4. Step 4: Simplify right side
    5,358,603,917.57x = 22,034,454,366,164,570,112
  5. Step 5: Solve for x
    x = 22,034,454,366,164,570,112/5,358,603,917.57
  6. Step 6: Final answer
    x = 4,111,976,683.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.