Finding the Fourth Proportional to 199,328,143.20, 298,992,214.80 and 145,580,431.20
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Solution
The fourth proportional to 199,328,143.20, 298,992,214.80 and 145,580,431.20 is: 218,370,646.80
Step by Step Solution
- Step 1: Write the proportion equation
199,328,143.20 : 298,992,214.80 = 145,580,431.20 : x - Step 2: Convert to fraction form
199,328,143.20/298,992,214.80 = 145,580,431.20/x - Step 3: Cross multiply
199,328,143.20x = 298,992,214.80 × 145,580,431.20 - Step 4: Simplify right side
199,328,143.20x = 43,527,415,556,027,016 - Step 5: Solve for x
x = 43,527,415,556,027,016/199,328,143.20 - Step 6: Final answer
x = 218,370,646.80
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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.