Finding the Fourth Proportional to 7,395,639.54, 10,205,786.77 and 4,132,481.09
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Solution
The fourth proportional to 7,395,639.54, 10,205,786.77 and 4,132,481.09 is: 5,702,714.50
Step by Step Solution
- Step 1: Write the proportion equation
7,395,639.54 : 10,205,786.77 = 4,132,481.09 : x - Step 2: Convert to fraction form
7,395,639.54/10,205,786.77 = 4,132,481.09/x - Step 3: Cross multiply
7,395,639.54x = 10,205,786.77 × 4,132,481.09 - Step 4: Simplify right side
7,395,639.54x = 42,175,220,835,753.95 - Step 5: Solve for x
x = 42,175,220,835,753.95/7,395,639.54 - Step 6: Final answer
x = 5,702,714.50
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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.