Finding the Fourth Proportional to 3,900,386.62, 5,381,415.39 and 2,246,227.30
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Solution
The fourth proportional to 3,900,386.62, 5,381,415.39 and 2,246,227.30 is: 3,099,149.74
Step by Step Solution
- Step 1: Write the proportion equation
3,900,386.62 : 5,381,415.39 = 2,246,227.30 : x - Step 2: Convert to fraction form
3,900,386.62/5,381,415.39 = 2,246,227.30/x - Step 3: Cross multiply
3,900,386.62x = 5,381,415.39 × 2,246,227.30 - Step 4: Simplify right side
3,900,386.62x = 12,087,882,161,658.14 - Step 5: Solve for x
x = 12,087,882,161,658.14/3,900,386.62 - Step 6: Final answer
x = 3,099,149.74
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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.