Finding the Fourth Proportional to 5,343,764.20, 8,020,895.10 and 2,651,129.80
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Solution
The fourth proportional to 5,343,764.20, 8,020,895.10 and 2,651,129.80 is: 3,979,298.72
Step by Step Solution
- Step 1: Write the proportion equation
5,343,764.20 : 8,020,895.10 = 2,651,129.80 : x - Step 2: Convert to fraction form
5,343,764.20/8,020,895.10 = 2,651,129.80/x - Step 3: Cross multiply
5,343,764.20x = 8,020,895.10 × 2,651,129.80 - Step 4: Simplify right side
5,343,764.20x = 21,264,434,022,283.98 - Step 5: Solve for x
x = 21,264,434,022,283.98/5,343,764.20 - Step 6: Final answer
x = 3,979,298.72
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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.