Finding the Fourth Proportional to 5,493,772.80, 8,239,881.60 and 1,707,638.40
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Solution
The fourth proportional to 5,493,772.80, 8,239,881.60 and 1,707,638.40 is: 2,561,215.90
Step by Step Solution
- Step 1: Write the proportion equation
5,493,772.80 : 8,239,881.60 = 1,707,638.40 : x - Step 2: Convert to fraction form
5,493,772.80/8,239,881.60 = 1,707,638.40/x - Step 3: Cross multiply
5,493,772.80x = 8,239,881.60 × 1,707,638.40 - Step 4: Simplify right side
5,493,772.80x = 14,070,738,231,613.44 - Step 5: Solve for x
x = 14,070,738,231,613.44/5,493,772.80 - Step 6: Final answer
x = 2,561,215.90
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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.