Finding the Fourth Proportional to 987,190,382.36, 1,362,303,249.42 and 541,154,706.68
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Solution
The fourth proportional to 987,190,382.36, 1,362,303,249.42 and 541,154,706.68 is: 746,782,817.70
Step by Step Solution
- Step 1: Write the proportion equation
987,190,382.36 : 1,362,303,249.42 = 541,154,706.68 : x - Step 2: Convert to fraction form
987,190,382.36/1,362,303,249.42 = 541,154,706.68/x - Step 3: Cross multiply
987,190,382.36x = 1,362,303,249.42 × 541,154,706.68 - Step 4: Simplify right side
987,190,382.36x = 737,216,815,349,090,944 - Step 5: Solve for x
x = 737,216,815,349,090,944/987,190,382.36 - Step 6: Final answer
x = 746,782,817.70
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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.