Finding the Fourth Proportional to 7,855,021.74, 11,757,329.87 and 4,202,614.71
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Solution
The fourth proportional to 7,855,021.74, 11,757,329.87 and 4,202,614.71 is: 6,290,438.03
Step by Step Solution
- Step 1: Write the proportion equation
7,855,021.74 : 11,757,329.87 = 4,202,614.71 : x - Step 2: Convert to fraction form
7,855,021.74/11,757,329.87 = 4,202,614.71/x - Step 3: Cross multiply
7,855,021.74x = 11,757,329.87 × 4,202,614.71 - Step 4: Simplify right side
7,855,021.74x = 49,411,527,440,971.31 - Step 5: Solve for x
x = 49,411,527,440,971.31/7,855,021.74 - Step 6: Final answer
x = 6,290,438.03
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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.