Finding the Fourth Proportional to 7,135,571.65, 9,847,095.41 and 3,872,386.96
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Solution
The fourth proportional to 7,135,571.65, 9,847,095.41 and 3,872,386.96 is: 5,343,897.55
Step by Step Solution
- Step 1: Write the proportion equation
7,135,571.65 : 9,847,095.41 = 3,872,386.96 : x - Step 2: Convert to fraction form
7,135,571.65/9,847,095.41 = 3,872,386.96/x - Step 3: Cross multiply
7,135,571.65x = 9,847,095.41 × 3,872,386.96 - Step 4: Simplify right side
7,135,571.65x = 38,131,763,859,559.85 - Step 5: Solve for x
x = 38,131,763,859,559.85/7,135,571.65 - Step 6: Final answer
x = 5,343,897.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.