Finding the Fourth Proportional to 18,860,725.70, 28,291,350.98 and 5,397,553.70
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Solution
The fourth proportional to 18,860,725.70, 28,291,350.98 and 5,397,553.70 is: 8,096,405.65
Step by Step Solution
- Step 1: Write the proportion equation
18,860,725.70 : 28,291,350.98 = 5,397,553.70 : x - Step 2: Convert to fraction form
18,860,725.70/28,291,350.98 = 5,397,553.70/x - Step 3: Cross multiply
18,860,725.70x = 28,291,350.98 × 5,397,553.70 - Step 4: Simplify right side
18,860,725.70x = 152,704,085,991,653.12 - Step 5: Solve for x
x = 152,704,085,991,653.12/18,860,725.70 - Step 6: Final answer
x = 8,096,405.65
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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.