Finding the Fourth Proportional to 1,821,379,490.19, 2,513,504,507.99 and 986,004,033.75
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Solution
The fourth proportional to 1,821,379,490.19, 2,513,504,507.99 and 986,004,033.75 is: 1,360,686,005.89
Step by Step Solution
- Step 1: Write the proportion equation
1,821,379,490.19 : 2,513,504,507.99 = 986,004,033.75 : x - Step 2: Convert to fraction form
1,821,379,490.19/2,513,504,507.99 = 986,004,033.75/x - Step 3: Cross multiply
1,821,379,490.19x = 2,513,504,507.99 × 986,004,033.75 - Step 4: Simplify right side
1,821,379,490.19x = 2,478,325,583,722,019,328 - Step 5: Solve for x
x = 2,478,325,583,722,019,328/1,821,379,490.19 - Step 6: Final answer
x = 1,360,686,005.89
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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.