Finding the Fourth Proportional to 1,037,876,827.20, 1,556,815,240.80 and 347,554,651.20
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Solution
The fourth proportional to 1,037,876,827.20, 1,556,815,240.80 and 347,554,651.20 is: 521,331,976.80
Step by Step Solution
- Step 1: Write the proportion equation
1,037,876,827.20 : 1,556,815,240.80 = 347,554,651.20 : x - Step 2: Convert to fraction form
1,037,876,827.20/1,556,815,240.80 = 347,554,651.20/x - Step 3: Cross multiply
1,037,876,827.20x = 1,556,815,240.80 × 347,554,651.20 - Step 4: Simplify right side
1,037,876,827.20x = 541,078,377,999,088,000 - Step 5: Solve for x
x = 541,078,377,999,088,000/1,037,876,827.20 - Step 6: Final answer
x = 521,331,976.80
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1.5x scale
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.