Finding the Fourth Proportional to 665,992,738.26, 919,050,026.49 and 368,647,168.50
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Solution
The fourth proportional to 665,992,738.26, 919,050,026.49 and 368,647,168.50 is: 508,722,048.32
Step by Step Solution
- Step 1: Write the proportion equation
665,992,738.26 : 919,050,026.49 = 368,647,168.50 : x - Step 2: Convert to fraction form
665,992,738.26/919,050,026.49 = 368,647,168.50/x - Step 3: Cross multiply
665,992,738.26x = 919,050,026.49 × 368,647,168.50 - Step 4: Simplify right side
665,992,738.26x = 338,805,189,975,388,480 - Step 5: Solve for x
x = 338,805,189,975,388,480/665,992,738.26 - Step 6: Final answer
x = 508,722,048.32
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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.