Finding the Fourth Proportional to 5,676,216.46, 7,830,721.34 and 3,471,175.68
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Solution
The fourth proportional to 5,676,216.46, 7,830,721.34 and 3,471,175.68 is: 4,788,719.68
Step by Step Solution
- Step 1: Write the proportion equation
5,676,216.46 : 7,830,721.34 = 3,471,175.68 : x - Step 2: Convert to fraction form
5,676,216.46/7,830,721.34 = 3,471,175.68/x - Step 3: Cross multiply
5,676,216.46x = 7,830,721.34 × 3,471,175.68 - Step 4: Simplify right side
5,676,216.46x = 27,181,809,480,942.95 - Step 5: Solve for x
x = 27,181,809,480,942.95/5,676,216.46 - Step 6: Final answer
x = 4,788,719.68
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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.