Finding the Fourth Proportional to 47,984,927.40, 71,987,888.70 and 19,223,836.20
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Solution
The fourth proportional to 47,984,927.40, 71,987,888.70 and 19,223,836.20 is: 28,839,959.87
Step by Step Solution
- Step 1: Write the proportion equation
47,984,927.40 : 71,987,888.70 = 19,223,836.20 : x - Step 2: Convert to fraction form
47,984,927.40/71,987,888.70 = 19,223,836.20/x - Step 3: Cross multiply
47,984,927.40x = 71,987,888.70 × 19,223,836.20 - Step 4: Simplify right side
47,984,927.40x = 1,383,883,380,752,631 - Step 5: Solve for x
x = 1,383,883,380,752,631/47,984,927.40 - Step 6: Final answer
x = 28,839,959.87
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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.