Finding the Fourth Proportional to 5,393,781.40, 8,085,228.90 and 2,693,954.20
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Solution
The fourth proportional to 5,393,781.40, 8,085,228.90 and 2,693,954.20 is: 4,038,212.66
Step by Step Solution
- Step 1: Write the proportion equation
5,393,781.40 : 8,085,228.90 = 2,693,954.20 : x - Step 2: Convert to fraction form
5,393,781.40/8,085,228.90 = 2,693,954.20/x - Step 3: Cross multiply
5,393,781.40x = 8,085,228.90 × 2,693,954.20 - Step 4: Simplify right side
5,393,781.40x = 21,781,236,353,116.38 - Step 5: Solve for x
x = 21,781,236,353,116.38/5,393,781.40 - Step 6: Final answer
x = 4,038,212.66
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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.