Finding the Fourth Proportional to 1,085,755,189.68, 1,498,222,274.20 and 609,336,287.44
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Solution
The fourth proportional to 1,085,755,189.68, 1,498,222,274.20 and 609,336,287.44 is: 840,816,794.61
Step by Step Solution
- Step 1: Write the proportion equation
1,085,755,189.68 : 1,498,222,274.20 = 609,336,287.44 : x - Step 2: Convert to fraction form
1,085,755,189.68/1,498,222,274.20 = 609,336,287.44/x - Step 3: Cross multiply
1,085,755,189.68x = 1,498,222,274.20 × 609,336,287.44 - Step 4: Simplify right side
1,085,755,189.68x = 912,921,198,315,672,832 - Step 5: Solve for x
x = 912,921,198,315,672,832/1,085,755,189.68 - Step 6: Final answer
x = 840,816,794.61
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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.