Finding the Fourth Proportional to 12,910,081.05, 19,367,676.95 and 3,688,133.09
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Solution
The fourth proportional to 12,910,081.05, 19,367,676.95 and 3,688,133.09 is: 5,532,929.64
Step by Step Solution
- Step 1: Write the proportion equation
12,910,081.05 : 19,367,676.95 = 3,688,133.09 : x - Step 2: Convert to fraction form
12,910,081.05/19,367,676.95 = 3,688,133.09/x - Step 3: Cross multiply
12,910,081.05x = 19,367,676.95 × 3,688,133.09 - Step 4: Simplify right side
12,910,081.05x = 71,430,570,120,446.22 - Step 5: Solve for x
x = 71,430,570,120,446.22/12,910,081.05 - Step 6: Final answer
x = 5,532,929.64
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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.