Finding the Fourth Proportional to 4,270,391.80, 6,397,811.70 and 2,021,572.60
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Solution
The fourth proportional to 4,270,391.80, 6,397,811.70 and 2,021,572.60 is: 3,028,677.80
Step by Step Solution
- Step 1: Write the proportion equation
4,270,391.80 : 6,397,811.70 = 2,021,572.60 : x - Step 2: Convert to fraction form
4,270,391.80/6,397,811.70 = 2,021,572.60/x - Step 3: Cross multiply
4,270,391.80x = 6,397,811.70 × 2,021,572.60 - Step 4: Simplify right side
4,270,391.80x = 12,933,640,832,679.42 - Step 5: Solve for x
x = 12,933,640,832,679.42/4,270,391.80 - Step 6: Final answer
x = 3,028,677.80
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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.