Finding the Fourth Proportional to 129,456,028.80, 194,184,043.20 and 117,512,092.80
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Solution
The fourth proportional to 129,456,028.80, 194,184,043.20 and 117,512,092.80 is: 176,268,139.20
Step by Step Solution
- Step 1: Write the proportion equation
129,456,028.80 : 194,184,043.20 = 117,512,092.80 : x - Step 2: Convert to fraction form
129,456,028.80/194,184,043.20 = 117,512,092.80/x - Step 3: Cross multiply
129,456,028.80x = 194,184,043.20 × 117,512,092.80 - Step 4: Simplify right side
129,456,028.80x = 22,818,973,304,797,608 - Step 5: Solve for x
x = 22,818,973,304,797,608/129,456,028.80 - Step 6: Final answer
x = 176,268,139.20
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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.