Finding the Fourth Proportional to 19,008,315.20, 28,505,474.40 and 6,229,236.80
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Solution
The fourth proportional to 19,008,315.20, 28,505,474.40 and 6,229,236.80 is: 9,341,561.75
Step by Step Solution
- Step 1: Write the proportion equation
19,008,315.20 : 28,505,474.40 = 6,229,236.80 : x - Step 2: Convert to fraction form
19,008,315.20/28,505,474.40 = 6,229,236.80/x - Step 3: Cross multiply
19,008,315.20x = 28,505,474.40 × 6,229,236.80 - Step 4: Simplify right side
19,008,315.20x = 177,567,350,133,937.91 - Step 5: Solve for x
x = 177,567,350,133,937.91/19,008,315.20 - Step 6: Final answer
x = 9,341,561.75
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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.