Finding the Fourth Proportional to 20,757,743.48, 31,139,586.71 and 6,382,018.19
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Solution
The fourth proportional to 20,757,743.48, 31,139,586.71 and 6,382,018.19 is: 9,573,940.87
Step by Step Solution
- Step 1: Write the proportion equation
20,757,743.48 : 31,139,586.71 = 6,382,018.19 : x - Step 2: Convert to fraction form
20,757,743.48/31,139,586.71 = 6,382,018.19/x - Step 3: Cross multiply
20,757,743.48x = 31,139,586.71 × 6,382,018.19 - Step 4: Simplify right side
20,757,743.48x = 198,733,408,624,694.22 - Step 5: Solve for x
x = 198,733,408,624,694.22/20,757,743.48 - Step 6: Final answer
x = 9,573,940.87
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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.