Finding the Fourth Proportional to 1,626,854,975.81, 2,245,305,274.67 and 992,143,696.49
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Solution
The fourth proportional to 1,626,854,975.81, 2,245,305,274.67 and 992,143,696.49 is: 1,369,307,964.19
Step by Step Solution
- Step 1: Write the proportion equation
1,626,854,975.81 : 2,245,305,274.67 = 992,143,696.49 : x - Step 2: Convert to fraction form
1,626,854,975.81/2,245,305,274.67 = 992,143,696.49/x - Step 3: Cross multiply
1,626,854,975.81x = 2,245,305,274.67 × 992,143,696.49 - Step 4: Simplify right side
1,626,854,975.81x = 2,227,665,474,954,627,840 - Step 5: Solve for x
x = 2,227,665,474,954,627,840/1,626,854,975.81 - Step 6: Final answer
x = 1,369,307,964.19
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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.