Finding the Fourth Proportional to 8,461,761.36, 11,686,845.08 and 5,703,691.92
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Solution
The fourth proportional to 8,461,761.36, 11,686,845.08 and 5,703,691.92 is: 7,877,575.49
Step by Step Solution
- Step 1: Write the proportion equation
8,461,761.36 : 11,686,845.08 = 5,703,691.92 : x - Step 2: Convert to fraction form
8,461,761.36/11,686,845.08 = 5,703,691.92/x - Step 3: Cross multiply
8,461,761.36x = 11,686,845.08 × 5,703,691.92 - Step 4: Simplify right side
8,461,761.36x = 66,658,163,853,087.75 - Step 5: Solve for x
x = 66,658,163,853,087.75/8,461,761.36 - Step 6: Final answer
x = 7,877,575.49
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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.