Finding the Fourth Proportional to 3,970,720.36, 5,475,782.82 and 2,666,918.44
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Solution
The fourth proportional to 3,970,720.36, 5,475,782.82 and 2,666,918.44 is: 3,677,787.62
Step by Step Solution
- Step 1: Write the proportion equation
3,970,720.36 : 5,475,782.82 = 2,666,918.44 : x - Step 2: Convert to fraction form
3,970,720.36/5,475,782.82 = 2,666,918.44/x - Step 3: Cross multiply
3,970,720.36x = 5,475,782.82 × 2,666,918.44 - Step 4: Simplify right side
3,970,720.36x = 14,603,466,176,093.20 - Step 5: Solve for x
x = 14,603,466,176,093.20/3,970,720.36 - Step 6: Final answer
x = 3,677,787.62
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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.