Home / 39,379,195,927.52-54,343,293,037.44-21,557,853,433.44

Finding the Fourth Proportional to 39,379,195,927.52, 54,343,293,037.44 and 21,557,853,433.44

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Solution

The fourth proportional to 39,379,195,927.52, 54,343,293,037.44 and 21,557,853,433.44 is: 29,749,839,192.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,379,195,927.52 : 54,343,293,037.44 = 21,557,853,433.44 : x
  2. Step 2: Convert to fraction form
    39,379,195,927.52/54,343,293,037.44 = 21,557,853,433.44/x
  3. Step 3: Cross multiply
    39,379,195,927.52x = 54,343,293,037.44 × 21,557,853,433.44
  4. Step 4: Simplify right side
    39,379,195,927.52x = 1,171,524,746,391,611,899,904
  5. Step 5: Solve for x
    x = 1,171,524,746,391,611,899,904/39,379,195,927.52
  6. Step 6: Final answer
    x = 29,749,839,192.96

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Double scale
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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.