Finding the Fourth Proportional to 4,376,493.80, 6,561,630.30 and 1,981,485.80
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Solution
The fourth proportional to 4,376,493.80, 6,561,630.30 and 1,981,485.80 is: 2,970,820.45
Step by Step Solution
- Step 1: Write the proportion equation
4,376,493.80 : 6,561,630.30 = 1,981,485.80 : x - Step 2: Convert to fraction form
4,376,493.80/6,561,630.30 = 1,981,485.80/x - Step 3: Cross multiply
4,376,493.80x = 6,561,630.30 × 1,981,485.80 - Step 4: Simplify right side
4,376,493.80x = 13,001,777,264,299.74 - Step 5: Solve for x
x = 13,001,777,264,299.74/4,376,493.80 - Step 6: Final answer
x = 2,970,820.45
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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.