Finding the Fourth Proportional to 263,115,274.12, 394,536,921.42 and 115,502,417.80
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Solution
The fourth proportional to 263,115,274.12, 394,536,921.42 and 115,502,417.80 is: 173,193,929.88
Step by Step Solution
- Step 1: Write the proportion equation
263,115,274.12 : 394,536,921.42 = 115,502,417.80 : x - Step 2: Convert to fraction form
263,115,274.12/394,536,921.42 = 115,502,417.80/x - Step 3: Cross multiply
263,115,274.12x = 394,536,921.42 × 115,502,417.80 - Step 4: Simplify right side
263,115,274.12x = 45,569,968,335,378,608 - Step 5: Solve for x
x = 45,569,968,335,378,608/263,115,274.12 - Step 6: Final answer
x = 173,193,929.88
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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.