Finding the Fourth Proportional to 9,028,979.07, 13,543,206.17 and 2,639,381.55
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Solution
The fourth proportional to 9,028,979.07, 13,543,206.17 and 2,639,381.55 is: 3,958,995.61
Step by Step Solution
- Step 1: Write the proportion equation
9,028,979.07 : 13,543,206.17 = 2,639,381.55 : x - Step 2: Convert to fraction form
9,028,979.07/13,543,206.17 = 2,639,381.55/x - Step 3: Cross multiply
9,028,979.07x = 13,543,206.17 × 2,639,381.55 - Step 4: Simplify right side
9,028,979.07x = 35,745,688,479,747.25 - Step 5: Solve for x
x = 35,745,688,479,747.25/9,028,979.07 - Step 6: Final answer
x = 3,958,995.61
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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.