Finding the Fourth Proportional to 7,491,620.80, 11,218,423.20 and 4,122,020.80
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Solution
The fourth proportional to 7,491,620.80, 11,218,423.20 and 4,122,020.80 is: 6,172,572.67
Step by Step Solution
- Step 1: Write the proportion equation
7,491,620.80 : 11,218,423.20 = 4,122,020.80 : x - Step 2: Convert to fraction form
7,491,620.80/11,218,423.20 = 4,122,020.80/x - Step 3: Cross multiply
7,491,620.80x = 11,218,423.20 × 4,122,020.80 - Step 4: Simplify right side
7,491,620.80x = 46,242,573,773,602.55 - Step 5: Solve for x
x = 46,242,573,773,602.55/7,491,620.80 - Step 6: Final answer
x = 6,172,572.67
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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.