Finding the Fourth Proportional to 19,920,939.09, 29,890,092.73 and 6,976,375.70
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Solution
The fourth proportional to 19,920,939.09, 29,890,092.73 and 6,976,375.70 is: 10,467,604.75
Step by Step Solution
- Step 1: Write the proportion equation
19,920,939.09 : 29,890,092.73 = 6,976,375.70 : x - Step 2: Convert to fraction form
19,920,939.09/29,890,092.73 = 6,976,375.70/x - Step 3: Cross multiply
19,920,939.09x = 29,890,092.73 × 6,976,375.70 - Step 4: Simplify right side
19,920,939.09x = 208,524,516,592,318.66 - Step 5: Solve for x
x = 208,524,516,592,318.66/19,920,939.09 - Step 6: Final answer
x = 10,467,604.75
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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.