Finding the Fourth Proportional to 7,261,446.96, 10,020,714.12 and 3,998,193.48
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Solution
The fourth proportional to 7,261,446.96, 10,020,714.12 and 3,998,193.48 is: 5,517,461.48
Step by Step Solution
- Step 1: Write the proportion equation
7,261,446.96 : 10,020,714.12 = 3,998,193.48 : x - Step 2: Convert to fraction form
7,261,446.96/10,020,714.12 = 3,998,193.48/x - Step 3: Cross multiply
7,261,446.96x = 10,020,714.12 × 3,998,193.48 - Step 4: Simplify right side
7,261,446.96x = 40,064,753,859,527.94 - Step 5: Solve for x
x = 40,064,753,859,527.94/7,261,446.96 - Step 6: Final answer
x = 5,517,461.48
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1.5x scale
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.