Finding the Fourth Proportional to 2,930,623.20, 4,395,934.80 and 2,678,680.80
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Solution
The fourth proportional to 2,930,623.20, 4,395,934.80 and 2,678,680.80 is: 4,018,021.20
Step by Step Solution
- Step 1: Write the proportion equation
2,930,623.20 : 4,395,934.80 = 2,678,680.80 : x - Step 2: Convert to fraction form
2,930,623.20/4,395,934.80 = 2,678,680.80/x - Step 3: Cross multiply
2,930,623.20x = 4,395,934.80 × 2,678,680.80 - Step 4: Simplify right side
2,930,623.20x = 11,775,306,146,811.84 - Step 5: Solve for x
x = 11,775,306,146,811.84/2,930,623.20 - Step 6: Final answer
x = 4,018,021.20
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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.