Finding the Fourth Proportional to 3,872,026.82, 5,342,778.68 and 2,153,159.84
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Solution
The fourth proportional to 3,872,026.82, 5,342,778.68 and 2,153,159.84 is: 2,971,016.74
Step by Step Solution
- Step 1: Write the proportion equation
3,872,026.82 : 5,342,778.68 = 2,153,159.84 : x - Step 2: Convert to fraction form
3,872,026.82/5,342,778.68 = 2,153,159.84/x - Step 3: Cross multiply
3,872,026.82x = 5,342,778.68 × 2,153,159.84 - Step 4: Simplify right side
3,872,026.82x = 11,503,856,487,784.21 - Step 5: Solve for x
x = 11,503,856,487,784.21/3,872,026.82 - Step 6: Final answer
x = 2,971,016.74
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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.