Finding the Fourth Proportional to 18,812,026.17, 28,212,913.99 and 5,161,936.41
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Solution
The fourth proportional to 18,812,026.17, 28,212,913.99 and 5,161,936.41 is: 7,741,498.27
Step by Step Solution
- Step 1: Write the proportion equation
18,812,026.17 : 28,212,913.99 = 5,161,936.41 : x - Step 2: Convert to fraction form
18,812,026.17/28,212,913.99 = 5,161,936.41/x - Step 3: Cross multiply
18,812,026.17x = 28,212,913.99 × 5,161,936.41 - Step 4: Simplify right side
18,812,026.17x = 145,633,267,957,179.38 - Step 5: Solve for x
x = 145,633,267,957,179.38/18,812,026.17 - Step 6: Final answer
x = 7,741,498.27
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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.