Finding the Fourth Proportional to 6,476,479.20, 9,720,939.60 and 3,285,208.80
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Solution
The fourth proportional to 6,476,479.20, 9,720,939.60 and 3,285,208.80 is: 4,930,968.71
Step by Step Solution
- Step 1: Write the proportion equation
6,476,479.20 : 9,720,939.60 = 3,285,208.80 : x - Step 2: Convert to fraction form
6,476,479.20/9,720,939.60 = 3,285,208.80/x - Step 3: Cross multiply
6,476,479.20x = 9,720,939.60 × 3,285,208.80 - Step 4: Simplify right side
6,476,479.20x = 31,935,316,318,188.48 - Step 5: Solve for x
x = 31,935,316,318,188.48/6,476,479.20 - Step 6: Final answer
x = 4,930,968.71
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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.