Finding the Fourth Proportional to 10,372,643.24, 15,550,906.84 and 6,721,660.60
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Solution
The fourth proportional to 10,372,643.24, 15,550,906.84 and 6,721,660.60 is: 10,077,269.16
Step by Step Solution
- Step 1: Write the proportion equation
10,372,643.24 : 15,550,906.84 = 6,721,660.60 : x - Step 2: Convert to fraction form
10,372,643.24/15,550,906.84 = 6,721,660.60/x - Step 3: Cross multiply
10,372,643.24x = 15,550,906.84 × 6,721,660.60 - Step 4: Simplify right side
10,372,643.24x = 104,527,917,800,698.50 - Step 5: Solve for x
x = 104,527,917,800,698.50/10,372,643.24 - Step 6: Final answer
x = 10,077,269.16
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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.