Finding the Fourth Proportional to 11,509,742.80, 15,883,445.92 and 6,353,105.68
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Solution
The fourth proportional to 11,509,742.80, 15,883,445.92 and 6,353,105.68 is: 8,767,286.31
Step by Step Solution
- Step 1: Write the proportion equation
11,509,742.80 : 15,883,445.92 = 6,353,105.68 : x - Step 2: Convert to fraction form
11,509,742.80/15,883,445.92 = 6,353,105.68/x - Step 3: Cross multiply
11,509,742.80x = 15,883,445.92 × 6,353,105.68 - Step 4: Simplify right side
11,509,742.80x = 100,909,210,492,324.83 - Step 5: Solve for x
x = 100,909,210,492,324.83/11,509,742.80 - Step 6: Final answer
x = 8,767,286.31
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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.