Finding the Fourth Proportional to 820,976,529.17, 1,231,913,101.12 and 348,202,033.13
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Solution
The fourth proportional to 820,976,529.17, 1,231,913,101.12 and 348,202,033.13 is: 522,493,190.99
Step by Step Solution
- Step 1: Write the proportion equation
820,976,529.17 : 1,231,913,101.12 = 348,202,033.13 : x - Step 2: Convert to fraction form
820,976,529.17/1,231,913,101.12 = 348,202,033.13/x - Step 3: Cross multiply
820,976,529.17x = 1,231,913,101.12 × 348,202,033.13 - Step 4: Simplify right side
820,976,529.17x = 428,954,646,451,676,544 - Step 5: Solve for x
x = 428,954,646,451,676,544/820,976,529.17 - Step 6: Final answer
x = 522,493,190.99
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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.