Finding the Fourth Proportional to 722,194,677,896.20, 996,629,296,615.28 and 397,039,501,813.09
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Solution
The fourth proportional to 722,194,677,896.20, 996,629,296,615.28 and 397,039,501,813.09 is: 547,914,864,968.49
Step by Step Solution
- Step 1: Write the proportion equation
722,194,677,896.20 : 996,629,296,615.28 = 397,039,501,813.09 : x - Step 2: Convert to fraction form
722,194,677,896.20/996,629,296,615.28 = 397,039,501,813.09/x - Step 3: Cross multiply
722,194,677,896.20x = 996,629,296,615.28 × 397,039,501,813.09 - Step 4: Simplify right side
722,194,677,896.20x = 395,701,199,420,461,124,943,872 - Step 5: Solve for x
x = 395,701,199,420,461,124,943,872/722,194,677,896.20 - Step 6: Final answer
x = 547,914,864,968.49
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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.