Finding the Fourth Proportional to 5,278,822.12, 7,918,370.76 and 1,684,584.22
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Solution
The fourth proportional to 5,278,822.12, 7,918,370.76 and 1,684,584.22 is: 2,526,920.23
Step by Step Solution
- Step 1: Write the proportion equation
5,278,822.12 : 7,918,370.76 = 1,684,584.22 : x - Step 2: Convert to fraction form
5,278,822.12/7,918,370.76 = 1,684,584.22/x - Step 3: Cross multiply
5,278,822.12x = 7,918,370.76 × 1,684,584.22 - Step 4: Simplify right side
5,278,822.12x = 13,339,162,430,405.41 - Step 5: Solve for x
x = 13,339,162,430,405.41/5,278,822.12 - Step 6: Final answer
x = 2,526,920.23
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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.