Finding the Fourth Proportional to 3,886,814.97, 5,363,790.84 and 2,167,934.22
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Solution
The fourth proportional to 3,886,814.97, 5,363,790.84 and 2,167,934.22 is: 2,991,741.52
Step by Step Solution
- Step 1: Write the proportion equation
3,886,814.97 : 5,363,790.84 = 2,167,934.22 : x - Step 2: Convert to fraction form
3,886,814.97/5,363,790.84 = 2,167,934.22/x - Step 3: Cross multiply
3,886,814.97x = 5,363,790.84 × 2,167,934.22 - Step 4: Simplify right side
3,886,814.97x = 11,628,345,710,958.54 - Step 5: Solve for x
x = 11,628,345,710,958.54/3,886,814.97 - Step 6: Final answer
x = 2,991,741.52
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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.