Finding the Fourth Proportional to 11,180,171.81, 15,428,489.18 and 6,218,579.59
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Solution
The fourth proportional to 11,180,171.81, 15,428,489.18 and 6,218,579.59 is: 8,581,557.55
Step by Step Solution
- Step 1: Write the proportion equation
11,180,171.81 : 15,428,489.18 = 6,218,579.59 : x - Step 2: Convert to fraction form
11,180,171.81/15,428,489.18 = 6,218,579.59/x - Step 3: Cross multiply
11,180,171.81x = 15,428,489.18 × 6,218,579.59 - Step 4: Simplify right side
11,180,171.81x = 95,943,287,849,619.72 - Step 5: Solve for x
x = 95,943,287,849,619.72/11,180,171.81 - Step 6: Final answer
x = 8,581,557.55
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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.