Finding the Fourth Proportional to 11,278,218.96, 15,563,957.92 and 6,121,581.68
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Solution
The fourth proportional to 11,278,218.96, 15,563,957.92 and 6,121,581.68 is: 8,447,791.27
Step by Step Solution
- Step 1: Write the proportion equation
11,278,218.96 : 15,563,957.92 = 6,121,581.68 : x - Step 2: Convert to fraction form
11,278,218.96/15,563,957.92 = 6,121,581.68/x - Step 3: Cross multiply
11,278,218.96x = 15,563,957.92 × 6,121,581.68 - Step 4: Simplify right side
11,278,218.96x = 95,276,039,671,362.91 - Step 5: Solve for x
x = 95,276,039,671,362.91/11,278,218.96 - Step 6: Final answer
x = 8,447,791.27
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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.