Finding the Fourth Proportional to 7,669,320.40, 11,503,130.79 and 2,745,155.44
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Solution
The fourth proportional to 7,669,320.40, 11,503,130.79 and 2,745,155.44 is: 4,117,428.98
Step by Step Solution
- Step 1: Write the proportion equation
7,669,320.40 : 11,503,130.79 = 2,745,155.44 : x - Step 2: Convert to fraction form
7,669,320.40/11,503,130.79 = 2,745,155.44/x - Step 3: Cross multiply
7,669,320.40x = 11,503,130.79 × 2,745,155.44 - Step 4: Simplify right side
7,669,320.40x = 31,577,882,089,873.24 - Step 5: Solve for x
x = 31,577,882,089,873.24/7,669,320.40 - Step 6: Final answer
x = 4,117,428.98
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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.