Home / 257,400,690,345.28-355,262,131,928.44-170,439,879,384.64

Finding the Fourth Proportional to 257,400,690,345.28, 355,262,131,928.44 and 170,439,879,384.64

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Solution

The fourth proportional to 257,400,690,345.28, 355,262,131,928.44 and 170,439,879,384.64 is: 235,239,597,976.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,400,690,345.28 : 355,262,131,928.44 = 170,439,879,384.64 : x
  2. Step 2: Convert to fraction form
    257,400,690,345.28/355,262,131,928.44 = 170,439,879,384.64/x
  3. Step 3: Cross multiply
    257,400,690,345.28x = 355,262,131,928.44 × 170,439,879,384.64
  4. Step 4: Simplify right side
    257,400,690,345.28x = 60,550,834,915,813,384,781,824
  5. Step 5: Solve for x
    x = 60,550,834,915,813,384,781,824/257,400,690,345.28
  6. Step 6: Final answer
    x = 235,239,597,976.95

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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.