Finding the Fourth Proportional to 3,855,178.69, 5,320,178.29 and 2,136,327.91
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Solution
The fourth proportional to 3,855,178.69, 5,320,178.29 and 2,136,327.91 is: 2,948,150.08
Step by Step Solution
- Step 1: Write the proportion equation
3,855,178.69 : 5,320,178.29 = 2,136,327.91 : x - Step 2: Convert to fraction form
3,855,178.69/5,320,178.29 = 2,136,327.91/x - Step 3: Cross multiply
3,855,178.69x = 5,320,178.29 × 2,136,327.91 - Step 4: Simplify right side
3,855,178.69x = 11,365,645,361,762.25 - Step 5: Solve for x
x = 11,365,645,361,762.25/3,855,178.69 - Step 6: Final answer
x = 2,948,150.08
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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.