Finding the Fourth Proportional to 21,193,133.12, 31,747,135.52 and 9,662,739.46
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Solution
The fourth proportional to 21,193,133.12, 31,747,135.52 and 9,662,739.46 is: 14,474,702.60
Step by Step Solution
- Step 1: Write the proportion equation
21,193,133.12 : 31,747,135.52 = 9,662,739.46 : x - Step 2: Convert to fraction form
21,193,133.12/31,747,135.52 = 9,662,739.46/x - Step 3: Cross multiply
21,193,133.12x = 31,747,135.52 × 9,662,739.46 - Step 4: Simplify right side
21,193,133.12x = 306,764,299,131,071.62 - Step 5: Solve for x
x = 306,764,299,131,071.62/21,193,133.12 - Step 6: Final answer
x = 14,474,702.60
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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.