Finding the Fourth Proportional to 6,330,678.52, 8,731,515.84 and 5,449,127.92
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Solution
The fourth proportional to 6,330,678.52, 8,731,515.84 and 5,449,127.92 is: 7,515,647.27
Step by Step Solution
- Step 1: Write the proportion equation
6,330,678.52 : 8,731,515.84 = 5,449,127.92 : x - Step 2: Convert to fraction form
6,330,678.52/8,731,515.84 = 5,449,127.92/x - Step 3: Cross multiply
6,330,678.52x = 8,731,515.84 × 5,449,127.92 - Step 4: Simplify right side
6,330,678.52x = 47,579,146,747,666.25 - Step 5: Solve for x
x = 47,579,146,747,666.25/6,330,678.52 - Step 6: Final answer
x = 7,515,647.27
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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.