Finding the Fourth Proportional to 20,809,475.10, 31,212,657.45 and 8,675,804.70
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Solution
The fourth proportional to 20,809,475.10, 31,212,657.45 and 8,675,804.70 is: 13,013,058.66
Step by Step Solution
- Step 1: Write the proportion equation
20,809,475.10 : 31,212,657.45 = 8,675,804.70 : x - Step 2: Convert to fraction form
20,809,475.10/31,212,657.45 = 8,675,804.70/x - Step 3: Cross multiply
20,809,475.10x = 31,212,657.45 × 8,675,804.70 - Step 4: Simplify right side
20,809,475.10x = 270,794,920,204,200 - Step 5: Solve for x
x = 270,794,920,204,200/20,809,475.10 - Step 6: Final answer
x = 13,013,058.66
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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.