Finding the Fourth Proportional to 3,319,855,218.30, 4,979,782,827.45 and 866,192,121.30
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Solution
The fourth proportional to 3,319,855,218.30, 4,979,782,827.45 and 866,192,121.30 is: 1,299,288,181.95
Step by Step Solution
- Step 1: Write the proportion equation
3,319,855,218.30 : 4,979,782,827.45 = 866,192,121.30 : x - Step 2: Convert to fraction form
3,319,855,218.30/4,979,782,827.45 = 866,192,121.30/x - Step 3: Cross multiply
3,319,855,218.30x = 4,979,782,827.45 × 866,192,121.30 - Step 4: Simplify right side
3,319,855,218.30x = 4,313,448,650,922,227,200 - Step 5: Solve for x
x = 4,313,448,650,922,227,200/3,319,855,218.30 - Step 6: Final answer
x = 1,299,288,181.95
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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.