Finding the Fourth Proportional to 14,221,512.69, 19,622,274.48 and 8,639,647.62
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Solution
The fourth proportional to 14,221,512.69, 19,622,274.48 and 8,639,647.62 is: 11,920,640.28
Step by Step Solution
- Step 1: Write the proportion equation
14,221,512.69 : 19,622,274.48 = 8,639,647.62 : x - Step 2: Convert to fraction form
14,221,512.69/19,622,274.48 = 8,639,647.62/x - Step 3: Cross multiply
14,221,512.69x = 19,622,274.48 × 8,639,647.62 - Step 4: Simplify right side
14,221,512.69x = 169,529,537,010,118.72 - Step 5: Solve for x
x = 169,529,537,010,118.72/14,221,512.69 - Step 6: Final answer
x = 11,920,640.28
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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.