Finding the Fourth Proportional to 13,117,755.38, 18,102,527.28 and 7,316,912.84
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Solution
The fourth proportional to 13,117,755.38, 18,102,527.28 and 7,316,912.84 is: 10,097,353.58
Step by Step Solution
- Step 1: Write the proportion equation
13,117,755.38 : 18,102,527.28 = 7,316,912.84 : x - Step 2: Convert to fraction form
13,117,755.38/18,102,527.28 = 7,316,912.84/x - Step 3: Cross multiply
13,117,755.38x = 18,102,527.28 × 7,316,912.84 - Step 4: Simplify right side
13,117,755.38x = 132,454,614,291,482.28 - Step 5: Solve for x
x = 132,454,614,291,482.28/13,117,755.38 - Step 6: Final answer
x = 10,097,353.58
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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.