Finding the Fourth Proportional to 12,420,441.60, 18,625,551.84 and 4,746,920.64
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Solution
The fourth proportional to 12,420,441.60, 18,625,551.84 and 4,746,920.64 is: 7,118,427.77
Step by Step Solution
- Step 1: Write the proportion equation
12,420,441.60 : 18,625,551.84 = 4,746,920.64 : x - Step 2: Convert to fraction form
12,420,441.60/18,625,551.84 = 4,746,920.64/x - Step 3: Cross multiply
12,420,441.60x = 18,625,551.84 × 4,746,920.64 - Step 4: Simplify right side
12,420,441.60x = 88,414,016,460,685.97 - Step 5: Solve for x
x = 88,414,016,460,685.97/12,420,441.60 - Step 6: Final answer
x = 7,118,427.77
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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.