Finding the Fourth Proportional to 13,436,472.66, 18,536,479.47 and 8,539,070.10
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Solution
The fourth proportional to 13,436,472.66, 18,536,479.47 and 8,539,070.10 is: 11,780,197.20
Step by Step Solution
- Step 1: Write the proportion equation
13,436,472.66 : 18,536,479.47 = 8,539,070.10 : x - Step 2: Convert to fraction form
13,436,472.66/18,536,479.47 = 8,539,070.10/x - Step 3: Cross multiply
13,436,472.66x = 18,536,479.47 × 8,539,070.10 - Step 4: Simplify right side
13,436,472.66x = 158,284,297,601,540.84 - Step 5: Solve for x
x = 158,284,297,601,540.84/13,436,472.66 - Step 6: Final answer
x = 11,780,197.20
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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.