Finding the Fourth Proportional to 71,478,577.55, 107,205,526.16 and 18,956,613.44
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Solution
The fourth proportional to 71,478,577.55, 107,205,526.16 and 18,956,613.44 is: 28,431,647.46
Step by Step Solution
- Step 1: Write the proportion equation
71,478,577.55 : 107,205,526.16 = 18,956,613.44 : x - Step 2: Convert to fraction form
71,478,577.55/107,205,526.16 = 18,956,613.44/x - Step 3: Cross multiply
71,478,577.55x = 107,205,526.16 × 18,956,613.44 - Step 4: Simplify right side
71,478,577.55x = 2,032,253,717,416,116.75 - Step 5: Solve for x
x = 2,032,253,717,416,116.75/71,478,577.55 - Step 6: Final answer
x = 28,431,647.46
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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.