Finding the Fourth Proportional to 10,985,205.60, 16,496,470.80 and 8,148,520.80
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Solution
The fourth proportional to 10,985,205.60, 16,496,470.80 and 8,148,520.80 is: 12,236,624.45
Step by Step Solution
- Step 1: Write the proportion equation
10,985,205.60 : 16,496,470.80 = 8,148,520.80 : x - Step 2: Convert to fraction form
10,985,205.60/16,496,470.80 = 8,148,520.80/x - Step 3: Cross multiply
10,985,205.60x = 16,496,470.80 × 8,148,520.80 - Step 4: Simplify right side
10,985,205.60x = 134,421,835,440,392.64 - Step 5: Solve for x
x = 134,421,835,440,392.64/10,985,205.60 - Step 6: Final answer
x = 12,236,624.45
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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.