Finding the Fourth Proportional to 7,203,877.20, 9,941,587.68 and 3,940,617.36
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Solution
The fourth proportional to 7,203,877.20, 9,941,587.68 and 3,940,617.36 is: 5,438,181.68
Step by Step Solution
- Step 1: Write the proportion equation
7,203,877.20 : 9,941,587.68 = 3,940,617.36 : x - Step 2: Convert to fraction form
7,203,877.20/9,941,587.68 = 3,940,617.36/x - Step 3: Cross multiply
7,203,877.20x = 9,941,587.68 × 3,940,617.36 - Step 4: Simplify right side
7,203,877.20x = 39,175,992,997,770.12 - Step 5: Solve for x
x = 39,175,992,997,770.12/7,203,877.20 - Step 6: Final answer
x = 5,438,181.68
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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.