Finding the Fourth Proportional to 8,485,735.56, 11,680,742.88 and 7,396,117.08
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Solution
The fourth proportional to 8,485,735.56, 11,680,742.88 and 7,396,117.08 is: 10,180,866.62
Step by Step Solution
- Step 1: Write the proportion equation
8,485,735.56 : 11,680,742.88 = 7,396,117.08 : x - Step 2: Convert to fraction form
8,485,735.56/11,680,742.88 = 7,396,117.08/x - Step 3: Cross multiply
8,485,735.56x = 11,680,742.88 × 7,396,117.08 - Step 4: Simplify right side
8,485,735.56x = 86,392,141,921,856.39 - Step 5: Solve for x
x = 86,392,141,921,856.39/8,485,735.56 - Step 6: Final answer
x = 10,180,866.62
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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.