Finding the Fourth Proportional to 11,023,947.12, 15,213,899.02 and 6,613,838.72
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Solution
The fourth proportional to 11,023,947.12, 15,213,899.02 and 6,613,838.72 is: 9,127,608.59
Step by Step Solution
- Step 1: Write the proportion equation
11,023,947.12 : 15,213,899.02 = 6,613,838.72 : x - Step 2: Convert to fraction form
11,023,947.12/15,213,899.02 = 6,613,838.72/x - Step 3: Cross multiply
11,023,947.12x = 15,213,899.02 × 6,613,838.72 - Step 4: Simplify right side
11,023,947.12x = 100,622,274,420,646.05 - Step 5: Solve for x
x = 100,622,274,420,646.05/11,023,947.12 - Step 6: Final answer
x = 9,127,608.59
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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.