Finding the Fourth Proportional to 8,104,363.20, 12,156,544.80 and 7,731,115.20
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Solution
The fourth proportional to 8,104,363.20, 12,156,544.80 and 7,731,115.20 is: 11,596,672.80
Step by Step Solution
- Step 1: Write the proportion equation
8,104,363.20 : 12,156,544.80 = 7,731,115.20 : x - Step 2: Convert to fraction form
8,104,363.20/12,156,544.80 = 7,731,115.20/x - Step 3: Cross multiply
8,104,363.20x = 12,156,544.80 × 7,731,115.20 - Step 4: Simplify right side
8,104,363.20x = 93,983,648,282,760.97 - Step 5: Solve for x
x = 93,983,648,282,760.97/8,104,363.20 - Step 6: Final answer
x = 11,596,672.80
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1.5x scale
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.