Home / 315,431,193,182.82-435,295,429,227.88-170,915,211,103.92

Finding the Fourth Proportional to 315,431,193,182.82, 435,295,429,227.88 and 170,915,211,103.92

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Solution

The fourth proportional to 315,431,193,182.82, 435,295,429,227.88 and 170,915,211,103.92 is: 235,863,198,653.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,431,193,182.82 : 435,295,429,227.88 = 170,915,211,103.92 : x
  2. Step 2: Convert to fraction form
    315,431,193,182.82/435,295,429,227.88 = 170,915,211,103.92/x
  3. Step 3: Cross multiply
    315,431,193,182.82x = 435,295,429,227.88 × 170,915,211,103.92
  4. Step 4: Simplify right side
    315,431,193,182.82x = 74,398,610,179,054,582,628,352
  5. Step 5: Solve for x
    x = 74,398,610,179,054,582,628,352/315,431,193,182.82
  6. Step 6: Final answer
    x = 235,863,198,653.07

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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.