Finding the Fourth Proportional to 1,821,379,491.19, 2,513,504,509.37 and 986,004,034.75
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Solution
The fourth proportional to 1,821,379,491.19, 2,513,504,509.37 and 986,004,034.75 is: 1,360,686,007.28
Step by Step Solution
- Step 1: Write the proportion equation
1,821,379,491.19 : 2,513,504,509.37 = 986,004,034.75 : x - Step 2: Convert to fraction form
1,821,379,491.19/2,513,504,509.37 = 986,004,034.75/x - Step 3: Cross multiply
1,821,379,491.19x = 2,513,504,509.37 × 986,004,034.75 - Step 4: Simplify right side
1,821,379,491.19x = 2,478,325,587,601,139,200 - Step 5: Solve for x
x = 2,478,325,587,601,139,200/1,821,379,491.19 - Step 6: Final answer
x = 1,360,686,007.28
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1.5x scale
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.