Finding the Fourth Proportional to 2,991,223.92, 4,121,956.44 and 2,130,265.20
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Solution
The fourth proportional to 2,991,223.92, 4,121,956.44 and 2,130,265.20 is: 2,935,540.97
Step by Step Solution
- Step 1: Write the proportion equation
2,991,223.92 : 4,121,956.44 = 2,130,265.20 : x - Step 2: Convert to fraction form
2,991,223.92/4,121,956.44 = 2,130,265.20/x - Step 3: Cross multiply
2,991,223.92x = 4,121,956.44 × 2,130,265.20 - Step 4: Simplify right side
2,991,223.92x = 8,780,860,360,047.89 - Step 5: Solve for x
x = 8,780,860,360,047.89/2,991,223.92 - Step 6: Final answer
x = 2,935,540.97
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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.