Finding the Fourth Proportional to 8,230,818.68, 11,358,530.29 and 4,509,665.52
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Solution
The fourth proportional to 8,230,818.68, 11,358,530.29 and 4,509,665.52 is: 6,223,338.69
Step by Step Solution
- Step 1: Write the proportion equation
8,230,818.68 : 11,358,530.29 = 4,509,665.52 : x - Step 2: Convert to fraction form
8,230,818.68/11,358,530.29 = 4,509,665.52/x - Step 3: Cross multiply
8,230,818.68x = 11,358,530.29 × 4,509,665.52 - Step 4: Simplify right side
8,230,818.68x = 51,223,172,369,731.20 - Step 5: Solve for x
x = 51,223,172,369,731.20/8,230,818.68 - Step 6: Final answer
x = 6,223,338.69
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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.