Finding the Fourth Proportional to 19,784,813.11, 27,303,324.66 and 11,524,659.91
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Solution
The fourth proportional to 19,784,813.11, 27,303,324.66 and 11,524,659.91 is: 15,904,195.27
Step by Step Solution
- Step 1: Write the proportion equation
19,784,813.11 : 27,303,324.66 = 11,524,659.91 : x - Step 2: Convert to fraction form
19,784,813.11/27,303,324.66 = 11,524,659.91/x - Step 3: Cross multiply
19,784,813.11x = 27,303,324.66 × 11,524,659.91 - Step 4: Simplify right side
19,784,813.11x = 314,661,531,050,558.06 - Step 5: Solve for x
x = 314,661,531,050,558.06/19,784,813.11 - Step 6: Final answer
x = 15,904,195.27
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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.