Finding the Fourth Proportional to 14,731,959.99, 20,330,589.56 and 8,116,197.51
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Solution
The fourth proportional to 14,731,959.99, 20,330,589.56 and 8,116,197.51 is: 11,200,619.63
Step by Step Solution
- Step 1: Write the proportion equation
14,731,959.99 : 20,330,589.56 = 8,116,197.51 : x - Step 2: Convert to fraction form
14,731,959.99/20,330,589.56 = 8,116,197.51/x - Step 3: Cross multiply
14,731,959.99x = 20,330,589.56 × 8,116,197.51 - Step 4: Simplify right side
14,731,959.99x = 165,007,080,323,123 - Step 5: Solve for x
x = 165,007,080,323,123/14,731,959.99 - Step 6: Final answer
x = 11,200,619.63
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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.