Finding the Fourth Proportional to 12,322,979.93, 17,023,106.86 and 11,218,566.80
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Solution
The fourth proportional to 12,322,979.93, 17,023,106.86 and 11,218,566.80 is: 15,497,457.80
Step by Step Solution
- Step 1: Write the proportion equation
12,322,979.93 : 17,023,106.86 = 11,218,566.80 : x - Step 2: Convert to fraction form
12,322,979.93/17,023,106.86 = 11,218,566.80/x - Step 3: Cross multiply
12,322,979.93x = 17,023,106.86 × 11,218,566.80 - Step 4: Simplify right side
12,322,979.93x = 190,974,861,339,286.31 - Step 5: Solve for x
x = 190,974,861,339,286.31/12,322,979.93 - Step 6: Final answer
x = 15,497,457.80
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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.