Finding the Fourth Proportional to 299,382,811.80, 449,074,217.70 and 276,987,931.80
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Solution
The fourth proportional to 299,382,811.80, 449,074,217.70 and 276,987,931.80 is: 415,481,897.70
Step by Step Solution
- Step 1: Write the proportion equation
299,382,811.80 : 449,074,217.70 = 276,987,931.80 : x - Step 2: Convert to fraction form
299,382,811.80/449,074,217.70 = 276,987,931.80/x - Step 3: Cross multiply
299,382,811.80x = 449,074,217.70 × 276,987,931.80 - Step 4: Simplify right side
299,382,811.80x = 124,388,138,785,425,952 - Step 5: Solve for x
x = 124,388,138,785,425,952/299,382,811.80 - Step 6: Final answer
x = 415,481,897.70
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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.