Finding the Fourth Proportional to 3,881,764.13, 5,356,855.73 and 2,251,138.28
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Solution
The fourth proportional to 3,881,764.13, 5,356,855.73 and 2,251,138.28 is: 3,106,583.15
Step by Step Solution
- Step 1: Write the proportion equation
3,881,764.13 : 5,356,855.73 = 2,251,138.28 : x - Step 2: Convert to fraction form
3,881,764.13/5,356,855.73 = 2,251,138.28/x - Step 3: Cross multiply
3,881,764.13x = 5,356,855.73 × 2,251,138.28 - Step 4: Simplify right side
3,881,764.13x = 12,059,023,013,260.33 - Step 5: Solve for x
x = 12,059,023,013,260.33/3,881,764.13 - Step 6: Final answer
x = 3,106,583.15
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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.