Finding the Fourth Proportional to 6,809,380.02, 9,397,506.20 and 3,909,330.54
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Solution
The fourth proportional to 6,809,380.02, 9,397,506.20 and 3,909,330.54 is: 5,395,198.66
Step by Step Solution
- Step 1: Write the proportion equation
6,809,380.02 : 9,397,506.20 = 3,909,330.54 : x - Step 2: Convert to fraction form
6,809,380.02/9,397,506.20 = 3,909,330.54/x - Step 3: Cross multiply
6,809,380.02x = 9,397,506.20 × 3,909,330.54 - Step 4: Simplify right side
6,809,380.02x = 36,737,957,967,952.70 - Step 5: Solve for x
x = 36,737,957,967,952.70/6,809,380.02 - Step 6: Final answer
x = 5,395,198.66
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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.