Finding the Fourth Proportional to 7,477,340.77, 11,211,526.58 and 3,428,756.81
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Solution
The fourth proportional to 7,477,340.77, 11,211,526.58 and 3,428,756.81 is: 5,141,078.79
Step by Step Solution
- Step 1: Write the proportion equation
7,477,340.77 : 11,211,526.58 = 3,428,756.81 : x - Step 2: Convert to fraction form
7,477,340.77/11,211,526.58 = 3,428,756.81/x - Step 3: Cross multiply
7,477,340.77x = 11,211,526.58 × 3,428,756.81 - Step 4: Simplify right side
7,477,340.77x = 38,441,598,077,912.25 - Step 5: Solve for x
x = 38,441,598,077,912.25/7,477,340.77 - Step 6: Final answer
x = 5,141,078.79
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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.