Finding the Fourth Proportional to 289,220,467.80, 399,246,436.88 and 195,261,891.02
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Solution
The fourth proportional to 289,220,467.80, 399,246,436.88 and 195,261,891.02 is: 269,543,904.84
Step by Step Solution
- Step 1: Write the proportion equation
289,220,467.80 : 399,246,436.88 = 195,261,891.02 : x - Step 2: Convert to fraction form
289,220,467.80/399,246,436.88 = 195,261,891.02/x - Step 3: Cross multiply
289,220,467.80x = 399,246,436.88 × 195,261,891.02 - Step 4: Simplify right side
289,220,467.80x = 77,957,614,249,497,376 - Step 5: Solve for x
x = 77,957,614,249,497,376/289,220,467.80 - Step 6: Final answer
x = 269,543,904.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.