Finding the Fourth Proportional to 5,276,839.05, 7,282,161.19 and 2,953,673.80
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Solution
The fourth proportional to 5,276,839.05, 7,282,161.19 and 2,953,673.80 is: 4,076,138.86
Step by Step Solution
- Step 1: Write the proportion equation
5,276,839.05 : 7,282,161.19 = 2,953,673.80 : x - Step 2: Convert to fraction form
5,276,839.05/7,282,161.19 = 2,953,673.80/x - Step 3: Cross multiply
5,276,839.05x = 7,282,161.19 × 2,953,673.80 - Step 4: Simplify right side
5,276,839.05x = 21,509,128,714,279.82 - Step 5: Solve for x
x = 21,509,128,714,279.82/5,276,839.05 - Step 6: Final answer
x = 4,076,138.86
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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.