Finding the Fourth Proportional to 14,689,442.26, 20,271,922.01 and 8,163,346.78
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Solution
The fourth proportional to 14,689,442.26, 20,271,922.01 and 8,163,346.78 is: 11,265,691.80
Step by Step Solution
- Step 1: Write the proportion equation
14,689,442.26 : 20,271,922.01 = 8,163,346.78 : x - Step 2: Convert to fraction form
14,689,442.26/20,271,922.01 = 8,163,346.78/x - Step 3: Cross multiply
14,689,442.26x = 20,271,922.01 × 8,163,346.78 - Step 4: Simplify right side
14,689,442.26x = 165,486,729,223,927.91 - Step 5: Solve for x
x = 165,486,729,223,927.91/14,689,442.26 - Step 6: Final answer
x = 11,265,691.80
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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.