Finding the Fourth Proportional to 3,192,421.79, 4,405,674.35 and 1,816,007.99
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Solution
The fourth proportional to 3,192,421.79, 4,405,674.35 and 1,816,007.99 is: 2,506,166.27
Step by Step Solution
- Step 1: Write the proportion equation
3,192,421.79 : 4,405,674.35 = 1,816,007.99 : x - Step 2: Convert to fraction form
3,192,421.79/4,405,674.35 = 1,816,007.99/x - Step 3: Cross multiply
3,192,421.79x = 4,405,674.35 × 1,816,007.99 - Step 4: Simplify right side
3,192,421.79x = 8,000,739,803,449.71 - Step 5: Solve for x
x = 8,000,739,803,449.71/3,192,421.79 - Step 6: Final answer
x = 2,506,166.27
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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.