Finding the Fourth Proportional to 20,192,137.74, 27,865,138.95 and 11,024,780.49
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Solution
The fourth proportional to 20,192,137.74, 27,865,138.95 and 11,024,780.49 is: 15,214,191.00
Step by Step Solution
- Step 1: Write the proportion equation
20,192,137.74 : 27,865,138.95 = 11,024,780.49 : x - Step 2: Convert to fraction form
20,192,137.74/27,865,138.95 = 11,024,780.49/x - Step 3: Cross multiply
20,192,137.74x = 27,865,138.95 × 11,024,780.49 - Step 4: Simplify right side
20,192,137.74x = 307,207,040,247,099.06 - Step 5: Solve for x
x = 307,207,040,247,099.06/20,192,137.74 - Step 6: Final answer
x = 15,214,191.00
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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.