Finding the Fourth Proportional to 3,894,896.25, 5,374,857.80 and 2,176,029.68
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Solution
The fourth proportional to 3,894,896.25, 5,374,857.80 and 2,176,029.68 is: 3,002,865.63
Step by Step Solution
- Step 1: Write the proportion equation
3,894,896.25 : 5,374,857.80 = 2,176,029.68 : x - Step 2: Convert to fraction form
3,894,896.25/5,374,857.80 = 2,176,029.68/x - Step 3: Cross multiply
3,894,896.25x = 5,374,857.80 × 2,176,029.68 - Step 4: Simplify right side
3,894,896.25x = 11,695,850,077,145.29 - Step 5: Solve for x
x = 11,695,850,077,145.29/3,894,896.25 - Step 6: Final answer
x = 3,002,865.63
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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.