Finding the Fourth Proportional to 13,167,324.92, 18,170,486.70 and 7,365,981.80
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Solution
The fourth proportional to 13,167,324.92, 18,170,486.70 and 7,365,981.80 is: 10,164,818.99
Step by Step Solution
- Step 1: Write the proportion equation
13,167,324.92 : 18,170,486.70 = 7,365,981.80 : x - Step 2: Convert to fraction form
13,167,324.92/18,170,486.70 = 7,365,981.80/x - Step 3: Cross multiply
13,167,324.92x = 18,170,486.70 × 7,365,981.80 - Step 4: Simplify right side
13,167,324.92x = 133,843,474,329,342.05 - Step 5: Solve for x
x = 133,843,474,329,342.05/13,167,324.92 - Step 6: Final answer
x = 10,164,818.99
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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.