Finding the Fourth Proportional to 7,738,680.36, 11,608,280.70 and 3,478,862.76
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Solution
The fourth proportional to 7,738,680.36, 11,608,280.70 and 3,478,862.76 is: 5,218,411.09
Step by Step Solution
- Step 1: Write the proportion equation
7,738,680.36 : 11,608,280.70 = 3,478,862.76 : x - Step 2: Convert to fraction form
7,738,680.36/11,608,280.70 = 3,478,862.76/x - Step 3: Cross multiply
7,738,680.36x = 11,608,280.70 × 3,478,862.76 - Step 4: Simplify right side
7,738,680.36x = 40,383,615,434,856.73 - Step 5: Solve for x
x = 40,383,615,434,856.73/7,738,680.36 - Step 6: Final answer
x = 5,218,411.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.