Finding the Fourth Proportional to 5,381,859.20, 7,428,765.12 and 3,207,084.44
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Solution
The fourth proportional to 5,381,859.20, 7,428,765.12 and 3,207,084.44 is: 4,426,848.82
Step by Step Solution
- Step 1: Write the proportion equation
5,381,859.20 : 7,428,765.12 = 3,207,084.44 : x - Step 2: Convert to fraction form
5,381,859.20/7,428,765.12 = 3,207,084.44/x - Step 3: Cross multiply
5,381,859.20x = 7,428,765.12 × 3,207,084.44 - Step 4: Simplify right side
5,381,859.20x = 23,824,677,024,766.73 - Step 5: Solve for x
x = 23,824,677,024,766.73/5,381,859.20 - Step 6: Final answer
x = 4,426,848.82
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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.