Finding the Fourth Proportional to 4,751,990.21, 6,557,706.34 and 2,687,411.18
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Solution
The fourth proportional to 4,751,990.21, 6,557,706.34 and 2,687,411.18 is: 3,708,604.72
Step by Step Solution
- Step 1: Write the proportion equation
4,751,990.21 : 6,557,706.34 = 2,687,411.18 : x - Step 2: Convert to fraction form
4,751,990.21/6,557,706.34 = 2,687,411.18/x - Step 3: Cross multiply
4,751,990.21x = 6,557,706.34 × 2,687,411.18 - Step 4: Simplify right side
4,751,990.21x = 17,623,253,342,948.62 - Step 5: Solve for x
x = 17,623,253,342,948.62/4,751,990.21 - Step 6: Final answer
x = 3,708,604.72
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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.