Finding the Fourth Proportional to 129,476,129.40, 194,288,843.70 and 48,755,028.60
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Solution
The fourth proportional to 129,476,129.40, 194,288,843.70 and 48,755,028.60 is: 73,160,652.66
Step by Step Solution
- Step 1: Write the proportion equation
129,476,129.40 : 194,288,843.70 = 48,755,028.60 : x - Step 2: Convert to fraction form
129,476,129.40/194,288,843.70 = 48,755,028.60/x - Step 3: Cross multiply
129,476,129.40x = 194,288,843.70 × 48,755,028.60 - Step 4: Simplify right side
129,476,129.40x = 9,472,558,131,254,430 - Step 5: Solve for x
x = 9,472,558,131,254,430/129,476,129.40 - Step 6: Final answer
x = 73,160,652.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.