Finding the Fourth Proportional to 490,940,517.06, 677,512,263.39 and 267,936,510.99
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Solution
The fourth proportional to 490,940,517.06, 677,512,263.39 and 267,936,510.99 is: 369,760,216.76
Step by Step Solution
- Step 1: Write the proportion equation
490,940,517.06 : 677,512,263.39 = 267,936,510.99 : x - Step 2: Convert to fraction form
490,940,517.06/677,512,263.39 = 267,936,510.99/x - Step 3: Cross multiply
490,940,517.06x = 677,512,263.39 × 267,936,510.99 - Step 4: Simplify right side
490,940,517.06x = 181,530,272,005,654,528 - Step 5: Solve for x
x = 181,530,272,005,654,528/490,940,517.06 - Step 6: Final answer
x = 369,760,216.76
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1.5x scale
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.