Finding the Fourth Proportional to 6,539,979.98, 9,811,446.24 and 1,991,435.54
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Solution
The fourth proportional to 6,539,979.98, 9,811,446.24 and 1,991,435.54 is: 2,987,602.84
Step by Step Solution
- Step 1: Write the proportion equation
6,539,979.98 : 9,811,446.24 = 1,991,435.54 : x - Step 2: Convert to fraction form
6,539,979.98/9,811,446.24 = 1,991,435.54/x - Step 3: Cross multiply
6,539,979.98x = 9,811,446.24 × 1,991,435.54 - Step 4: Simplify right side
6,539,979.98x = 19,538,862,741,135.37 - Step 5: Solve for x
x = 19,538,862,741,135.37/6,539,979.98 - Step 6: Final answer
x = 2,987,602.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.