Finding the Fourth Proportional to 3,839,826.43, 5,298,506.35 and 2,120,844.43
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Solution
The fourth proportional to 3,839,826.43, 5,298,506.35 and 2,120,844.43 is: 2,926,514.49
Step by Step Solution
- Step 1: Write the proportion equation
3,839,826.43 : 5,298,506.35 = 2,120,844.43 : x - Step 2: Convert to fraction form
3,839,826.43/5,298,506.35 = 2,120,844.43/x - Step 3: Cross multiply
3,839,826.43x = 5,298,506.35 × 2,120,844.43 - Step 4: Simplify right side
3,839,826.43x = 11,237,307,679,717.13 - Step 5: Solve for x
x = 11,237,307,679,717.13/3,839,826.43 - Step 6: Final answer
x = 2,926,514.49
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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.