Finding the Fourth Proportional to 3,882,490.84, 5,357,842.50 and 2,163,573.64
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Solution
The fourth proportional to 3,882,490.84, 5,357,842.50 and 2,163,573.64 is: 2,985,734.49
Step by Step Solution
- Step 1: Write the proportion equation
3,882,490.84 : 5,357,842.50 = 2,163,573.64 : x - Step 2: Convert to fraction form
3,882,490.84/5,357,842.50 = 2,163,573.64/x - Step 3: Cross multiply
3,882,490.84x = 5,357,842.50 × 2,163,573.64 - Step 4: Simplify right side
3,882,490.84x = 11,592,086,800,271.70 - Step 5: Solve for x
x = 11,592,086,800,271.70/3,882,490.84 - Step 6: Final answer
x = 2,985,734.49
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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.