Finding the Fourth Proportional to 20,864,747.91, 31,293,764.75 and 5,715,137.67
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Solution
The fourth proportional to 20,864,747.91, 31,293,764.75 and 5,715,137.67 is: 8,571,786.94
Step by Step Solution
- Step 1: Write the proportion equation
20,864,747.91 : 31,293,764.75 = 5,715,137.67 : x - Step 2: Convert to fraction form
20,864,747.91/31,293,764.75 = 5,715,137.67/x - Step 3: Cross multiply
20,864,747.91x = 31,293,764.75 × 5,715,137.67 - Step 4: Simplify right side
20,864,747.91x = 178,848,173,730,267.44 - Step 5: Solve for x
x = 178,848,173,730,267.44/20,864,747.91 - Step 6: Final answer
x = 8,571,786.94
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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.