Finding the Fourth Proportional to 361,245,418.52, 498,532,381.32 and 202,478,475.91
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Solution
The fourth proportional to 361,245,418.52, 498,532,381.32 and 202,478,475.91 is: 279,427,977.73
Step by Step Solution
- Step 1: Write the proportion equation
361,245,418.52 : 498,532,381.32 = 202,478,475.91 : x - Step 2: Convert to fraction form
361,245,418.52/498,532,381.32 = 202,478,475.91/x - Step 3: Cross multiply
361,245,418.52x = 498,532,381.32 × 202,478,475.91 - Step 4: Simplify right side
361,245,418.52x = 100,942,076,761,456,544 - Step 5: Solve for x
x = 100,942,076,761,456,544/361,245,418.52 - Step 6: Final answer
x = 279,427,977.73
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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.