Finding the Fourth Proportional to 3,999,468.12, 5,519,226.74 and 2,163,886.13
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Solution
The fourth proportional to 3,999,468.12, 5,519,226.74 and 2,163,886.13 is: 2,986,141.61
Step by Step Solution
- Step 1: Write the proportion equation
3,999,468.12 : 5,519,226.74 = 2,163,886.13 : x - Step 2: Convert to fraction form
3,999,468.12/5,519,226.74 = 2,163,886.13/x - Step 3: Cross multiply
3,999,468.12x = 5,519,226.74 × 2,163,886.13 - Step 4: Simplify right side
3,999,468.12x = 11,942,978,152,595.55 - Step 5: Solve for x
x = 11,942,978,152,595.55/3,999,468.12 - Step 6: Final answer
x = 2,986,141.61
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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.