Finding the Fourth Proportional to 5,430,931.38, 8,147,446.10 and 2,064,876.66
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Solution
The fourth proportional to 5,430,931.38, 8,147,446.10 and 2,064,876.66 is: 3,097,713.84
Step by Step Solution
- Step 1: Write the proportion equation
5,430,931.38 : 8,147,446.10 = 2,064,876.66 : x - Step 2: Convert to fraction form
5,430,931.38/8,147,446.10 = 2,064,876.66/x - Step 3: Cross multiply
5,430,931.38x = 8,147,446.10 × 2,064,876.66 - Step 4: Simplify right side
5,430,931.38x = 16,823,471,290,498.03 - Step 5: Solve for x
x = 16,823,471,290,498.03/5,430,931.38 - Step 6: Final answer
x = 3,097,713.84
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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.