Finding the Fourth Proportional to 1,761,036,115.20, 2,641,554,172.80 and 996,624,211.20
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Solution
The fourth proportional to 1,761,036,115.20, 2,641,554,172.80 and 996,624,211.20 is: 1,494,936,316.80
Step by Step Solution
- Step 1: Write the proportion equation
1,761,036,115.20 : 2,641,554,172.80 = 996,624,211.20 : x - Step 2: Convert to fraction form
1,761,036,115.20/2,641,554,172.80 = 996,624,211.20/x - Step 3: Cross multiply
1,761,036,115.20x = 2,641,554,172.80 × 996,624,211.20 - Step 4: Simplify right side
1,761,036,115.20x = 2,632,636,843,808,868,864 - Step 5: Solve for x
x = 2,632,636,843,808,868,864/1,761,036,115.20 - Step 6: Final answer
x = 1,494,936,316.80
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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.