Finding the Fourth Proportional to 5,432,472.12, 7,496,809.53 and 2,985,240.84
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Solution
The fourth proportional to 5,432,472.12, 7,496,809.53 and 2,985,240.84 is: 4,119,631.26
Step by Step Solution
- Step 1: Write the proportion equation
5,432,472.12 : 7,496,809.53 = 2,985,240.84 : x - Step 2: Convert to fraction form
5,432,472.12/7,496,809.53 = 2,985,240.84/x - Step 3: Cross multiply
5,432,472.12x = 7,496,809.53 × 2,985,240.84 - Step 4: Simplify right side
5,432,472.12x = 22,379,781,978,657.20 - Step 5: Solve for x
x = 22,379,781,978,657.20/5,432,472.12 - Step 6: Final answer
x = 4,119,631.26
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.