Finding the Fourth Proportional to 3,929,946.81, 5,423,271.04 and 2,211,063.22
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Solution
The fourth proportional to 3,929,946.81, 5,423,271.04 and 2,211,063.22 is: 3,051,235.99
Step by Step Solution
- Step 1: Write the proportion equation
3,929,946.81 : 5,423,271.04 = 2,211,063.22 : x - Step 2: Convert to fraction form
3,929,946.81/5,423,271.04 = 2,211,063.22/x - Step 3: Cross multiply
3,929,946.81x = 5,423,271.04 × 2,211,063.22 - Step 4: Simplify right side
3,929,946.81x = 11,991,195,139,585.44 - Step 5: Solve for x
x = 11,991,195,139,585.44/3,929,946.81 - Step 6: Final answer
x = 3,051,235.99
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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.