Finding the Fourth Proportional to 8,253,407.97, 11,381,787.63 and 5,310,221.13
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Solution
The fourth proportional to 8,253,407.97, 11,381,787.63 and 5,310,221.13 is: 7,323,012.43
Step by Step Solution
- Step 1: Write the proportion equation
8,253,407.97 : 11,381,787.63 = 5,310,221.13 : x - Step 2: Convert to fraction form
8,253,407.97/11,381,787.63 = 5,310,221.13/x - Step 3: Cross multiply
8,253,407.97x = 11,381,787.63 × 5,310,221.13 - Step 4: Simplify right side
8,253,407.97x = 60,439,809,169,998.62 - Step 5: Solve for x
x = 60,439,809,169,998.62/8,253,407.97 - Step 6: Final answer
x = 7,323,012.43
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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.