Finding the Fourth Proportional to 20,941,805.80, 31,412,708.70 and 5,589,065.80
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Solution
The fourth proportional to 20,941,805.80, 31,412,708.70 and 5,589,065.80 is: 8,383,598.70
Step by Step Solution
- Step 1: Write the proportion equation
20,941,805.80 : 31,412,708.70 = 5,589,065.80 : x - Step 2: Convert to fraction form
20,941,805.80/31,412,708.70 = 5,589,065.80/x - Step 3: Cross multiply
20,941,805.80x = 31,412,708.70 × 5,589,065.80 - Step 4: Simplify right side
20,941,805.80x = 175,567,695,880,532.44 - Step 5: Solve for x
x = 175,567,695,880,532.44/20,941,805.80 - Step 6: Final answer
x = 8,383,598.70
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1.5x scale
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.