Finding the Fourth Proportional to 4,319,268.21, 6,479,689.66 and 2,161,421.73
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Solution
The fourth proportional to 4,319,268.21, 6,479,689.66 and 2,161,421.73 is: 3,242,526.59
Step by Step Solution
- Step 1: Write the proportion equation
4,319,268.21 : 6,479,689.66 = 2,161,421.73 : x - Step 2: Convert to fraction form
4,319,268.21/6,479,689.66 = 2,161,421.73/x - Step 3: Cross multiply
4,319,268.21x = 6,479,689.66 × 2,161,421.73 - Step 4: Simplify right side
4,319,268.21x = 14,005,342,029,376.76 - Step 5: Solve for x
x = 14,005,342,029,376.76/4,319,268.21 - Step 6: Final answer
x = 3,242,526.59
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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.