Finding the Fourth Proportional to 7,858,143.74, 11,787,218.58 and 3,535,144.32
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Solution
The fourth proportional to 7,858,143.74, 11,787,218.58 and 3,535,144.32 is: 5,302,717.82
Step by Step Solution
- Step 1: Write the proportion equation
7,858,143.74 : 11,787,218.58 = 3,535,144.32 : x - Step 2: Convert to fraction form
7,858,143.74/11,787,218.58 = 3,535,144.32/x - Step 3: Cross multiply
7,858,143.74x = 11,787,218.58 × 3,535,144.32 - Step 4: Simplify right side
7,858,143.74x = 41,669,518,811,685.46 - Step 5: Solve for x
x = 41,669,518,811,685.46/7,858,143.74 - Step 6: Final answer
x = 5,302,717.82
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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.