Finding the Fourth Proportional to 18,891,135.47, 28,300,174.84 and 15,822,063.70
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Solution
The fourth proportional to 18,891,135.47, 28,300,174.84 and 15,822,063.70 is: 23,702,501.62
Step by Step Solution
- Step 1: Write the proportion equation
18,891,135.47 : 28,300,174.84 = 15,822,063.70 : x - Step 2: Convert to fraction form
18,891,135.47/28,300,174.84 = 15,822,063.70/x - Step 3: Cross multiply
18,891,135.47x = 28,300,174.84 × 15,822,063.70 - Step 4: Simplify right side
18,891,135.47x = 447,767,169,039,617.31 - Step 5: Solve for x
x = 447,767,169,039,617.31/18,891,135.47 - Step 6: Final answer
x = 23,702,501.62
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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.