Finding the Fourth Proportional to 5,476,848.21, 7,557,394.77 and 3,029,128.65
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Solution
The fourth proportional to 5,476,848.21, 7,557,394.77 and 3,029,128.65 is: 4,179,834.85
Step by Step Solution
- Step 1: Write the proportion equation
5,476,848.21 : 7,557,394.77 = 3,029,128.65 : x - Step 2: Convert to fraction form
5,476,848.21/7,557,394.77 = 3,029,128.65/x - Step 3: Cross multiply
5,476,848.21x = 7,557,394.77 × 3,029,128.65 - Step 4: Simplify right side
5,476,848.21x = 22,892,321,017,167.16 - Step 5: Solve for x
x = 22,892,321,017,167.16/5,476,848.21 - Step 6: Final answer
x = 4,179,834.85
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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.