Finding the Fourth Proportional to 29,397,909.61, 44,010,633.20 and 20,613,729.03
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Solution
The fourth proportional to 29,397,909.61, 44,010,633.20 and 20,613,729.03 is: 30,860,128.47
Step by Step Solution
- Step 1: Write the proportion equation
29,397,909.61 : 44,010,633.20 = 20,613,729.03 : x - Step 2: Convert to fraction form
29,397,909.61/44,010,633.20 = 20,613,729.03/x - Step 3: Cross multiply
29,397,909.61x = 44,010,633.20 × 20,613,729.03 - Step 4: Simplify right side
29,397,909.61x = 907,223,267,318,990 - Step 5: Solve for x
x = 907,223,267,318,990/29,397,909.61 - Step 6: Final answer
x = 30,860,128.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.