Finding the Fourth Proportional to 1,173,993,645.80, 1,760,990,468.70 and 664,385,709.80
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Solution
The fourth proportional to 1,173,993,645.80, 1,760,990,468.70 and 664,385,709.80 is: 996,578,564.70
Step by Step Solution
- Step 1: Write the proportion equation
1,173,993,645.80 : 1,760,990,468.70 = 664,385,709.80 : x - Step 2: Convert to fraction form
1,173,993,645.80/1,760,990,468.70 = 664,385,709.80/x - Step 3: Cross multiply
1,173,993,645.80x = 1,760,990,468.70 × 664,385,709.80 - Step 4: Simplify right side
1,173,993,645.80x = 1,169,976,902,498,284,032 - Step 5: Solve for x
x = 1,169,976,902,498,284,032/1,173,993,645.80 - Step 6: Final answer
x = 996,578,564.70
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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.