Home / 1,173,042,953.43-1,618,800,336.72-644,441,182.44

Finding the Fourth Proportional to 1,173,042,953.43, 1,618,800,336.72 and 644,441,182.44

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Solution

The fourth proportional to 1,173,042,953.43, 1,618,800,336.72 and 644,441,182.44 is: 889,329,414.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,042,953.43 : 1,618,800,336.72 = 644,441,182.44 : x
  2. Step 2: Convert to fraction form
    1,173,042,953.43/1,618,800,336.72 = 644,441,182.44/x
  3. Step 3: Cross multiply
    1,173,042,953.43x = 1,618,800,336.72 × 644,441,182.44
  4. Step 4: Simplify right side
    1,173,042,953.43x = 1,043,221,603,130,107,008
  5. Step 5: Solve for x
    x = 1,043,221,603,130,107,008/1,173,042,953.43
  6. Step 6: Final answer
    x = 889,329,414.65

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Double scale
Find fourth proportional to 1,173,042,954.43, 1,618,800,338.10 and 644,441,183.44
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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.