Finding the Fourth Proportional to 5,122,640.38, 7,683,118.90 and 1,839,315.31
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Solution
The fourth proportional to 5,122,640.38, 7,683,118.90 and 1,839,315.31 is: 2,758,670.75
Step by Step Solution
- Step 1: Write the proportion equation
5,122,640.38 : 7,683,118.90 = 1,839,315.31 : x - Step 2: Convert to fraction form
5,122,640.38/7,683,118.90 = 1,839,315.31/x - Step 3: Cross multiply
5,122,640.38x = 7,683,118.90 × 1,839,315.31 - Step 4: Simplify right side
5,122,640.38x = 14,131,678,187,503.05 - Step 5: Solve for x
x = 14,131,678,187,503.05/5,122,640.38 - Step 6: Final answer
x = 2,758,670.75
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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.