Finding the Fourth Proportional to 5,311,935.68, 7,964,488.84 and 3,488,145.80
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Solution
The fourth proportional to 5,311,935.68, 7,964,488.84 and 3,488,145.80 is: 5,229,976.41
Step by Step Solution
- Step 1: Write the proportion equation
5,311,935.68 : 7,964,488.84 = 3,488,145.80 : x - Step 2: Convert to fraction form
5,311,935.68/7,964,488.84 = 3,488,145.80/x - Step 3: Cross multiply
5,311,935.68x = 7,964,488.84 × 3,488,145.80 - Step 4: Simplify right side
5,311,935.68x = 27,781,298,296,392.87 - Step 5: Solve for x
x = 27,781,298,296,392.87/5,311,935.68 - Step 6: Final answer
x = 5,229,976.41
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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.