Finding the Fourth Proportional to 12,347,932.08, 18,433,806.56 and 11,527,351.91
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Solution
The fourth proportional to 12,347,932.08, 18,433,806.56 and 11,527,351.91 is: 17,208,790.42
Step by Step Solution
- Step 1: Write the proportion equation
12,347,932.08 : 18,433,806.56 = 11,527,351.91 : x - Step 2: Convert to fraction form
12,347,932.08/18,433,806.56 = 11,527,351.91/x - Step 3: Cross multiply
12,347,932.08x = 18,433,806.56 × 11,527,351.91 - Step 4: Simplify right side
12,347,932.08x = 212,492,975,272,389.38 - Step 5: Solve for x
x = 212,492,975,272,389.38/12,347,932.08 - Step 6: Final answer
x = 17,208,790.42
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.