Finding the Fourth Proportional to 8,076,819.20, 12,115,228.80 and 2,959,239.20
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Solution
The fourth proportional to 8,076,819.20, 12,115,228.80 and 2,959,239.20 is: 4,438,858.80
Step by Step Solution
- Step 1: Write the proportion equation
8,076,819.20 : 12,115,228.80 = 2,959,239.20 : x - Step 2: Convert to fraction form
8,076,819.20/12,115,228.80 = 2,959,239.20/x - Step 3: Cross multiply
8,076,819.20x = 12,115,228.80 × 2,959,239.20 - Step 4: Simplify right side
8,076,819.20x = 35,851,859,981,928.96 - Step 5: Solve for x
x = 35,851,859,981,928.96/8,076,819.20 - Step 6: Final answer
x = 4,438,858.80
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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.