Finding the Fourth Proportional to 138,440,446.80, 207,660,670.20 and 57,650,917.20
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Solution
The fourth proportional to 138,440,446.80, 207,660,670.20 and 57,650,917.20 is: 86,476,375.80
Step by Step Solution
- Step 1: Write the proportion equation
138,440,446.80 : 207,660,670.20 = 57,650,917.20 : x - Step 2: Convert to fraction form
138,440,446.80/207,660,670.20 = 57,650,917.20/x - Step 3: Cross multiply
138,440,446.80x = 207,660,670.20 × 57,650,917.20 - Step 4: Simplify right side
138,440,446.80x = 11,971,828,103,396,708 - Step 5: Solve for x
x = 11,971,828,103,396,708/138,440,446.80 - Step 6: Final answer
x = 86,476,375.80
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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.