Finding the Fourth Proportional to 5,515,374.80, 8,273,321.40 and 1,728,981.20
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Solution
The fourth proportional to 5,515,374.80, 8,273,321.40 and 1,728,981.20 is: 2,593,553.06
Step by Step Solution
- Step 1: Write the proportion equation
5,515,374.80 : 8,273,321.40 = 1,728,981.20 : x - Step 2: Convert to fraction form
5,515,374.80/8,273,321.40 = 1,728,981.20/x - Step 3: Cross multiply
5,515,374.80x = 8,273,321.40 × 1,728,981.20 - Step 4: Simplify right side
5,515,374.80x = 14,304,417,162,157.68 - Step 5: Solve for x
x = 14,304,417,162,157.68/5,515,374.80 - Step 6: Final answer
x = 2,593,553.06
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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.