Finding the Fourth Proportional to 13,431,672.88, 18,535,771.36 and 7,630,772.93
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Solution
The fourth proportional to 13,431,672.88, 18,535,771.36 and 7,630,772.93 is: 10,530,502.32
Step by Step Solution
- Step 1: Write the proportion equation
13,431,672.88 : 18,535,771.36 = 7,630,772.93 : x - Step 2: Convert to fraction form
13,431,672.88/18,535,771.36 = 7,630,772.93/x - Step 3: Cross multiply
13,431,672.88x = 18,535,771.36 × 7,630,772.93 - Step 4: Simplify right side
13,431,672.88x = 141,442,262,357,819.78 - Step 5: Solve for x
x = 141,442,262,357,819.78/13,431,672.88 - Step 6: Final answer
x = 10,530,502.32
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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.