Finding the Fourth Proportional to 3,896,410.86, 5,377,285.71 and 2,177,668.62
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Solution
The fourth proportional to 3,896,410.86, 5,377,285.71 and 2,177,668.62 is: 3,005,316.12
Step by Step Solution
- Step 1: Write the proportion equation
3,896,410.86 : 5,377,285.71 = 2,177,668.62 : x - Step 2: Convert to fraction form
3,896,410.86/5,377,285.71 = 2,177,668.62/x - Step 3: Cross multiply
3,896,410.86x = 5,377,285.71 × 2,177,668.62 - Step 4: Simplify right side
3,896,410.86x = 11,709,946,351,441.42 - Step 5: Solve for x
x = 11,709,946,351,441.42/3,896,410.86 - Step 6: Final answer
x = 3,005,316.12
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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.