Finding the Fourth Proportional to 13,541,733.12, 18,687,591.84 and 7,740,640.48
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Solution
The fourth proportional to 13,541,733.12, 18,687,591.84 and 7,740,640.48 is: 10,682,083.94
Step by Step Solution
- Step 1: Write the proportion equation
13,541,733.12 : 18,687,591.84 = 7,740,640.48 : x - Step 2: Convert to fraction form
13,541,733.12/18,687,591.84 = 7,740,640.48/x - Step 3: Cross multiply
13,541,733.12x = 18,687,591.84 × 7,740,640.48 - Step 4: Simplify right side
13,541,733.12x = 144,653,929,870,421.69 - Step 5: Solve for x
x = 144,653,929,870,421.69/13,541,733.12 - Step 6: Final answer
x = 10,682,083.94
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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.