Finding the Fourth Proportional to 4,001,979.22, 5,522,724.98 and 2,166,437.02
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Solution
The fourth proportional to 4,001,979.22, 5,522,724.98 and 2,166,437.02 is: 2,989,679.65
Step by Step Solution
- Step 1: Write the proportion equation
4,001,979.22 : 5,522,724.98 = 2,166,437.02 : x - Step 2: Convert to fraction form
4,001,979.22/5,522,724.98 = 2,166,437.02/x - Step 3: Cross multiply
4,001,979.22x = 5,522,724.98 × 2,166,437.02 - Step 4: Simplify right side
4,001,979.22x = 11,964,635,847,950.76 - Step 5: Solve for x
x = 11,964,635,847,950.76/4,001,979.22 - Step 6: Final answer
x = 2,989,679.65
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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.