Finding the Fourth Proportional to 5,381,671.53, 7,420,673.16 and 4,398,559.75
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Solution
The fourth proportional to 5,381,671.53, 7,420,673.16 and 4,398,559.75 is: 6,065,081.10
Step by Step Solution
- Step 1: Write the proportion equation
5,381,671.53 : 7,420,673.16 = 4,398,559.75 : x - Step 2: Convert to fraction form
5,381,671.53/7,420,673.16 = 4,398,559.75/x - Step 3: Cross multiply
5,381,671.53x = 7,420,673.16 × 4,398,559.75 - Step 4: Simplify right side
5,381,671.53x = 32,640,274,279,481.31 - Step 5: Solve for x
x = 32,640,274,279,481.31/5,381,671.53 - Step 6: Final answer
x = 6,065,081.10
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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.