Finding the Fourth Proportional to 51,129,145.20, 76,737,263.40 and 20,858,732.40
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Solution
The fourth proportional to 51,129,145.20, 76,737,263.40 and 20,858,732.40 is: 31,305,863.54
Step by Step Solution
- Step 1: Write the proportion equation
51,129,145.20 : 76,737,263.40 = 20,858,732.40 : x - Step 2: Convert to fraction form
51,129,145.20/76,737,263.40 = 20,858,732.40/x - Step 3: Cross multiply
51,129,145.20x = 76,737,263.40 × 20,858,732.40 - Step 4: Simplify right side
51,129,145.20x = 1,600,642,042,368,914.25 - Step 5: Solve for x
x = 1,600,642,042,368,914.25/51,129,145.20 - Step 6: Final answer
x = 31,305,863.54
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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.