Finding the Fourth Proportional to 4,917,951.20, 7,377,963.60 and 2,076,600.80
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Solution
The fourth proportional to 4,917,951.20, 7,377,963.60 and 2,076,600.80 is: 3,115,338.99
Step by Step Solution
- Step 1: Write the proportion equation
4,917,951.20 : 7,377,963.60 = 2,076,600.80 : x - Step 2: Convert to fraction form
4,917,951.20/7,377,963.60 = 2,076,600.80/x - Step 3: Cross multiply
4,917,951.20x = 7,377,963.60 × 2,076,600.80 - Step 4: Simplify right side
4,917,951.20x = 15,321,085,114,130.88 - Step 5: Solve for x
x = 15,321,085,114,130.88/4,917,951.20 - Step 6: Final answer
x = 3,115,338.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.