Finding the Fourth Proportional to 131,859,191.40, 181,962,236.88 and 73,121,707.68
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Solution
The fourth proportional to 131,859,191.40, 181,962,236.88 and 73,121,707.68 is: 100,906,044.95
Step by Step Solution
- Step 1: Write the proportion equation
131,859,191.40 : 181,962,236.88 = 73,121,707.68 : x - Step 2: Convert to fraction form
131,859,191.40/181,962,236.88 = 73,121,707.68/x - Step 3: Cross multiply
131,859,191.40x = 181,962,236.88 × 73,121,707.68 - Step 4: Simplify right side
131,859,191.40x = 13,305,389,493,938,276 - Step 5: Solve for x
x = 13,305,389,493,938,276/131,859,191.40 - Step 6: Final answer
x = 100,906,044.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.