Finding the Fourth Proportional to 28,473,407.62, 42,717,391.71 and 8,278,649.62
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Solution
The fourth proportional to 28,473,407.62, 42,717,391.71 and 8,278,649.62 is: 12,420,091.17
Step by Step Solution
- Step 1: Write the proportion equation
28,473,407.62 : 42,717,391.71 = 8,278,649.62 : x - Step 2: Convert to fraction form
28,473,407.62/42,717,391.71 = 8,278,649.62/x - Step 3: Cross multiply
28,473,407.62x = 42,717,391.71 × 8,278,649.62 - Step 4: Simplify right side
28,473,407.62x = 353,642,318,647,382.69 - Step 5: Solve for x
x = 353,642,318,647,382.69/28,473,407.62 - Step 6: Final answer
x = 12,420,091.17
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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.