Finding the Fourth Proportional to 3,919,937.18, 5,409,665.93 and 2,177,738.03
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Solution
The fourth proportional to 3,919,937.18, 5,409,665.93 and 2,177,738.03 is: 3,005,363.28
Step by Step Solution
- Step 1: Write the proportion equation
3,919,937.18 : 5,409,665.93 = 2,177,738.03 : x - Step 2: Convert to fraction form
3,919,937.18/5,409,665.93 = 2,177,738.03/x - Step 3: Cross multiply
3,919,937.18x = 5,409,665.93 × 2,177,738.03 - Step 4: Simplify right side
3,919,937.18x = 11,780,835,244,324.83 - Step 5: Solve for x
x = 11,780,835,244,324.83/3,919,937.18 - Step 6: Final answer
x = 3,005,363.28
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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.