Finding the Fourth Proportional to 7,392,541.46, 11,088,805.98 and 2,782,389.20
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Solution
The fourth proportional to 7,392,541.46, 11,088,805.98 and 2,782,389.20 is: 4,173,581.46
Step by Step Solution
- Step 1: Write the proportion equation
7,392,541.46 : 11,088,805.98 = 2,782,389.20 : x - Step 2: Convert to fraction form
7,392,541.46/11,088,805.98 = 2,782,389.20/x - Step 3: Cross multiply
7,392,541.46x = 11,088,805.98 × 2,782,389.20 - Step 4: Simplify right side
7,392,541.46x = 30,853,373,999,647.42 - Step 5: Solve for x
x = 30,853,373,999,647.42/7,392,541.46 - Step 6: Final answer
x = 4,173,581.46
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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.