Finding the Fourth Proportional to 5,186,662,943.08, 7,157,597,172.32 and 2,807,800,803.49
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Solution
The fourth proportional to 5,186,662,943.08, 7,157,597,172.32 and 2,807,800,803.49 is: 3,874,766,359.81
Step by Step Solution
- Step 1: Write the proportion equation
5,186,662,943.08 : 7,157,597,172.32 = 2,807,800,803.49 : x - Step 2: Convert to fraction form
5,186,662,943.08/7,157,597,172.32 = 2,807,800,803.49/x - Step 3: Cross multiply
5,186,662,943.08x = 7,157,597,172.32 × 2,807,800,803.49 - Step 4: Simplify right side
5,186,662,943.08x = 20,097,107,091,497,844,736 - Step 5: Solve for x
x = 20,097,107,091,497,844,736/5,186,662,943.08 - Step 6: Final answer
x = 3,874,766,359.81
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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.