Finding the Fourth Proportional to 8,901,201.84, 12,285,231.20 and 5,230,117.68
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Solution
The fourth proportional to 8,901,201.84, 12,285,231.20 and 5,230,117.68 is: 7,218,486.45
Step by Step Solution
- Step 1: Write the proportion equation
8,901,201.84 : 12,285,231.20 = 5,230,117.68 : x - Step 2: Convert to fraction form
8,901,201.84/12,285,231.20 = 5,230,117.68/x - Step 3: Cross multiply
8,901,201.84x = 12,285,231.20 × 5,230,117.68 - Step 4: Simplify right side
8,901,201.84x = 64,253,204,902,007.61 - Step 5: Solve for x
x = 64,253,204,902,007.61/8,901,201.84 - Step 6: Final answer
x = 7,218,486.45
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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.