Finding the Fourth Proportional to 7,858,079.09, 11,787,121.88 and 3,535,079.88
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Solution
The fourth proportional to 7,858,079.09, 11,787,121.88 and 3,535,079.88 is: 5,302,621.28
Step by Step Solution
- Step 1: Write the proportion equation
7,858,079.09 : 11,787,121.88 = 3,535,079.88 : x - Step 2: Convert to fraction form
7,858,079.09/11,787,121.88 = 3,535,079.88/x - Step 3: Cross multiply
7,858,079.09x = 11,787,121.88 × 3,535,079.88 - Step 4: Simplify right side
7,858,079.09x = 41,668,417,440,878.63 - Step 5: Solve for x
x = 41,668,417,440,878.63/7,858,079.09 - Step 6: Final answer
x = 5,302,621.28
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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.