Finding the Fourth Proportional to 5,391,766.76, 7,441,599.20 and 3,186,539.53
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Solution
The fourth proportional to 5,391,766.76, 7,441,599.20 and 3,186,539.53 is: 4,397,992.54
Step by Step Solution
- Step 1: Write the proportion equation
5,391,766.76 : 7,441,599.20 = 3,186,539.53 : x - Step 2: Convert to fraction form
5,391,766.76/7,441,599.20 = 3,186,539.53/x - Step 3: Cross multiply
5,391,766.76x = 7,441,599.20 × 3,186,539.53 - Step 4: Simplify right side
5,391,766.76x = 23,712,949,982,679.68 - Step 5: Solve for x
x = 23,712,949,982,679.68/5,391,766.76 - Step 6: Final answer
x = 4,397,992.54
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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.