Finding the Fourth Proportional to 20,180,769.66, 27,849,073.50 and 11,013,478.02
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Solution
The fourth proportional to 20,180,769.66, 27,849,073.50 and 11,013,478.02 is: 15,198,387.58
Step by Step Solution
- Step 1: Write the proportion equation
20,180,769.66 : 27,849,073.50 = 11,013,478.02 : x - Step 2: Convert to fraction form
20,180,769.66/27,849,073.50 = 11,013,478.02/x - Step 3: Cross multiply
20,180,769.66x = 27,849,073.50 × 11,013,478.02 - Step 4: Simplify right side
20,180,769.66x = 306,715,158,869,614.44 - Step 5: Solve for x
x = 306,715,158,869,614.44/20,180,769.66 - Step 6: Final answer
x = 15,198,387.58
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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.