Finding the Fourth Proportional to 144,828,138.60, 217,242,207.90 and 53,939,917.80
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Solution
The fourth proportional to 144,828,138.60, 217,242,207.90 and 53,939,917.80 is: 80,909,876.70
Step by Step Solution
- Step 1: Write the proportion equation
144,828,138.60 : 217,242,207.90 = 53,939,917.80 : x - Step 2: Convert to fraction form
144,828,138.60/217,242,207.90 = 53,939,917.80/x - Step 3: Cross multiply
144,828,138.60x = 217,242,207.90 × 53,939,917.80 - Step 4: Simplify right side
144,828,138.60x = 11,718,026,836,816,510 - Step 5: Solve for x
x = 11,718,026,836,816,510/144,828,138.60 - Step 6: Final answer
x = 80,909,876.70
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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.