Finding the Fourth Proportional to 18,390,343.36, 27,591,816.84 and 7,034,039.68
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Solution
The fourth proportional to 18,390,343.36, 27,591,816.84 and 7,034,039.68 is: 10,553,469.87
Step by Step Solution
- Step 1: Write the proportion equation
18,390,343.36 : 27,591,816.84 = 7,034,039.68 : x - Step 2: Convert to fraction form
18,390,343.36/27,591,816.84 = 7,034,039.68/x - Step 3: Cross multiply
18,390,343.36x = 27,591,816.84 × 7,034,039.68 - Step 4: Simplify right side
18,390,343.36x = 194,081,934,495,852.19 - Step 5: Solve for x
x = 194,081,934,495,852.19/18,390,343.36 - Step 6: Final answer
x = 10,553,469.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.