Finding the Fourth Proportional to 6,221,976.12, 8,585,409.51 and 3,608,368.56
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Solution
The fourth proportional to 6,221,976.12, 8,585,409.51 and 3,608,368.56 is: 4,979,016.50
Step by Step Solution
- Step 1: Write the proportion equation
6,221,976.12 : 8,585,409.51 = 3,608,368.56 : x - Step 2: Convert to fraction form
6,221,976.12/8,585,409.51 = 3,608,368.56/x - Step 3: Cross multiply
6,221,976.12x = 8,585,409.51 × 3,608,368.56 - Step 4: Simplify right side
6,221,976.12x = 30,979,321,750,609.00 - Step 5: Solve for x
x = 30,979,321,750,609.00/6,221,976.12 - Step 6: Final answer
x = 4,979,016.50
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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.