Finding the Fourth Proportional to 6,621,564.38, 9,917,928.77 and 3,202,639.63
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Solution
The fourth proportional to 6,621,564.38, 9,917,928.77 and 3,202,639.63 is: 4,796,986.01
Step by Step Solution
- Step 1: Write the proportion equation
6,621,564.38 : 9,917,928.77 = 3,202,639.63 : x - Step 2: Convert to fraction form
6,621,564.38/9,917,928.77 = 3,202,639.63/x - Step 3: Cross multiply
6,621,564.38x = 9,917,928.77 × 3,202,639.63 - Step 4: Simplify right side
6,621,564.38x = 31,763,551,685,511.14 - Step 5: Solve for x
x = 31,763,551,685,511.14/6,621,564.38 - Step 6: Final answer
x = 4,796,986.01
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1.5x scale
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.