Finding the Fourth Proportional to 7,186,180, 9,916,945.68 and 3,966,916
Calculator
Solution
The fourth proportional to 7,186,180, 9,916,945.68 and 3,966,916 is: 5,474,353.62
Step by Step Solution
- Step 1: Write the proportion equation
7,186,180 : 9,916,945.68 = 3,966,916 : x - Step 2: Convert to fraction form
7,186,180/9,916,945.68 = 3,966,916/x - Step 3: Cross multiply
7,186,180x = 9,916,945.68 × 3,966,916 - Step 4: Simplify right side
7,186,180x = 39,339,690,489,122.88 - Step 5: Solve for x
x = 39,339,690,489,122.88/7,186,180 - Step 6: Final answer
x = 5,474,353.62
Related Problems
Find fourth proportional to 3,593,090, 4,958,472.84 and 1,983,458
Half scale
Find fourth proportional to 14,372,360, 19,833,891.36 and 7,933,832
Double scale
Find fourth proportional to 7,186,181, 9,916,947.06 and 3,966,917
Similar ratio
Find fourth proportional to 10,779,270, 14,875,418.52 and 5,950,374
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.