Finding the Fourth Proportional to 5,278,107.60, 7,907,830.20 and 4,680,910.80
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Solution
The fourth proportional to 5,278,107.60, 7,907,830.20 and 4,680,910.80 is: 7,013,090.79
Step by Step Solution
- Step 1: Write the proportion equation
5,278,107.60 : 7,907,830.20 = 4,680,910.80 : x - Step 2: Convert to fraction form
5,278,107.60/7,907,830.20 = 4,680,910.80/x - Step 3: Cross multiply
5,278,107.60x = 7,907,830.20 × 4,680,910.80 - Step 4: Simplify right side
5,278,107.60x = 37,015,847,787,746.16 - Step 5: Solve for x
x = 37,015,847,787,746.16/5,278,107.60 - Step 6: Final answer
x = 7,013,090.79
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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.