Home / 1,136,636,431.88-1,568,557,645.62-641,603,415.56

Finding the Fourth Proportional to 1,136,636,431.88, 1,568,557,645.62 and 641,603,415.56

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Solution

The fourth proportional to 1,136,636,431.88, 1,568,557,645.62 and 641,603,415.56 is: 885,412,357.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,636,431.88 : 1,568,557,645.62 = 641,603,415.56 : x
  2. Step 2: Convert to fraction form
    1,136,636,431.88/1,568,557,645.62 = 641,603,415.56/x
  3. Step 3: Cross multiply
    1,136,636,431.88x = 1,568,557,645.62 × 641,603,415.56
  4. Step 4: Simplify right side
    1,136,636,431.88x = 1,006,391,942,932,543,872
  5. Step 5: Solve for x
    x = 1,006,391,942,932,543,872/1,136,636,431.88
  6. Step 6: Final answer
    x = 885,412,357.64

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Double scale
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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.