Finding the Fourth Proportional to 7,020,601.98, 10,531,311.21 and 1,972,306.14
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Solution
The fourth proportional to 7,020,601.98, 10,531,311.21 and 1,972,306.14 is: 2,958,573.90
Step by Step Solution
- Step 1: Write the proportion equation
7,020,601.98 : 10,531,311.21 = 1,972,306.14 : x - Step 2: Convert to fraction form
7,020,601.98/10,531,311.21 = 1,972,306.14/x - Step 3: Cross multiply
7,020,601.98x = 10,531,311.21 × 1,972,306.14 - Step 4: Simplify right side
7,020,601.98x = 20,770,969,761,733.83 - Step 5: Solve for x
x = 20,770,969,761,733.83/7,020,601.98 - Step 6: Final answer
x = 2,958,573.90
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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.