Finding the Fourth Proportional to 136,478,170.80, 204,717,256.20 and 75,893,896.80
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Solution
The fourth proportional to 136,478,170.80, 204,717,256.20 and 75,893,896.80 is: 113,840,845.20
Step by Step Solution
- Step 1: Write the proportion equation
136,478,170.80 : 204,717,256.20 = 75,893,896.80 : x - Step 2: Convert to fraction form
136,478,170.80/204,717,256.20 = 75,893,896.80/x - Step 3: Cross multiply
136,478,170.80x = 204,717,256.20 × 75,893,896.80 - Step 4: Simplify right side
136,478,170.80x = 15,536,790,315,221,958 - Step 5: Solve for x
x = 15,536,790,315,221,958/136,478,170.80 - Step 6: Final answer
x = 113,840,845.20
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1.5x scale
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.