Finding the Fourth Proportional to 19,364,385.80, 29,046,578.70 and 4,987,425.80
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Solution
The fourth proportional to 19,364,385.80, 29,046,578.70 and 4,987,425.80 is: 7,481,138.70
Step by Step Solution
- Step 1: Write the proportion equation
19,364,385.80 : 29,046,578.70 = 4,987,425.80 : x - Step 2: Convert to fraction form
19,364,385.80/29,046,578.70 = 4,987,425.80/x - Step 3: Cross multiply
19,364,385.80x = 29,046,578.70 × 4,987,425.80 - Step 4: Simplify right side
19,364,385.80x = 144,867,656,010,110.44 - Step 5: Solve for x
x = 144,867,656,010,110.44/19,364,385.80 - Step 6: Final answer
x = 7,481,138.70
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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.