Finding the Fourth Proportional to 5,618,437.25, 7,758,682.77 and 4,135,343.14
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Solution
The fourth proportional to 5,618,437.25, 7,758,682.77 and 4,135,343.14 is: 5,710,629.87
Step by Step Solution
- Step 1: Write the proportion equation
5,618,437.25 : 7,758,682.77 = 4,135,343.14 : x - Step 2: Convert to fraction form
5,618,437.25/7,758,682.77 = 4,135,343.14/x - Step 3: Cross multiply
5,618,437.25x = 7,758,682.77 × 4,135,343.14 - Step 4: Simplify right side
5,618,437.25x = 32,084,815,568,355.70 - Step 5: Solve for x
x = 32,084,815,568,355.70/5,618,437.25 - Step 6: Final answer
x = 5,710,629.87
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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.