Finding the Fourth Proportional to 18,366,342.57, 27,519,242.13 and 10,668,379.59
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Solution
The fourth proportional to 18,366,342.57, 27,519,242.13 and 10,668,379.59 is: 15,984,985.58
Step by Step Solution
- Step 1: Write the proportion equation
18,366,342.57 : 27,519,242.13 = 10,668,379.59 : x - Step 2: Convert to fraction form
18,366,342.57/27,519,242.13 = 10,668,379.59/x - Step 3: Cross multiply
18,366,342.57x = 27,519,242.13 × 10,668,379.59 - Step 4: Simplify right side
18,366,342.57x = 293,585,721,071,960.12 - Step 5: Solve for x
x = 293,585,721,071,960.12/18,366,342.57 - Step 6: Final answer
x = 15,984,985.58
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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.