Finding the Fourth Proportional to 6,138,879.84, 9,206,748.50 and 1,819,920.11
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Solution
The fourth proportional to 6,138,879.84, 9,206,748.50 and 1,819,920.11 is: 2,729,414.34
Step by Step Solution
- Step 1: Write the proportion equation
6,138,879.84 : 9,206,748.50 = 1,819,920.11 : x - Step 2: Convert to fraction form
6,138,879.84/9,206,748.50 = 1,819,920.11/x - Step 3: Cross multiply
6,138,879.84x = 9,206,748.50 × 1,819,920.11 - Step 4: Simplify right side
6,138,879.84x = 16,755,546,687,728.99 - Step 5: Solve for x
x = 16,755,546,687,728.99/6,138,879.84 - Step 6: Final answer
x = 2,729,414.34
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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.