Finding the Fourth Proportional to 5,149,868.66, 7,724,803.02 and 2,746,431.80
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Solution
The fourth proportional to 5,149,868.66, 7,724,803.02 and 2,746,431.80 is: 4,119,647.72
Step by Step Solution
- Step 1: Write the proportion equation
5,149,868.66 : 7,724,803.02 = 2,746,431.80 : x - Step 2: Convert to fraction form
5,149,868.66/7,724,803.02 = 2,746,431.80/x - Step 3: Cross multiply
5,149,868.66x = 7,724,803.02 × 2,746,431.80 - Step 4: Simplify right side
5,149,868.66x = 21,215,644,662,864.04 - Step 5: Solve for x
x = 21,215,644,662,864.04/5,149,868.66 - Step 6: Final answer
x = 4,119,647.72
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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.