Finding the Fourth Proportional to 1,211,112,083.40, 1,816,668,125.10 and 797,863,561.80
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Solution
The fourth proportional to 1,211,112,083.40, 1,816,668,125.10 and 797,863,561.80 is: 1,196,795,342.70
Step by Step Solution
- Step 1: Write the proportion equation
1,211,112,083.40 : 1,816,668,125.10 = 797,863,561.80 : x - Step 2: Convert to fraction form
1,211,112,083.40/1,816,668,125.10 = 797,863,561.80/x - Step 3: Cross multiply
1,211,112,083.40x = 1,816,668,125.10 × 797,863,561.80 - Step 4: Simplify right side
1,211,112,083.40x = 1,449,453,300,900,813,824 - Step 5: Solve for x
x = 1,449,453,300,900,813,824/1,211,112,083.40 - Step 6: Final answer
x = 1,196,795,342.70
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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.