Finding the Fourth Proportional to 21,378,649.93, 32,070,497.11 and 16,021,350.96
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Solution
The fourth proportional to 21,378,649.93, 32,070,497.11 and 16,021,350.96 is: 24,033,916.60
Step by Step Solution
- Step 1: Write the proportion equation
21,378,649.93 : 32,070,497.11 = 16,021,350.96 : x - Step 2: Convert to fraction form
21,378,649.93/32,070,497.11 = 16,021,350.96/x - Step 3: Cross multiply
21,378,649.93x = 32,070,497.11 × 16,021,350.96 - Step 4: Simplify right side
21,378,649.93x = 513,812,689,590,794.12 - Step 5: Solve for x
x = 513,812,689,590,794.12/21,378,649.93 - Step 6: Final answer
x = 24,033,916.60
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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.