Finding the Fourth Proportional to 149,365,940,642.20, 206,125,619,115.10 and 80,777,353,756
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Solution
The fourth proportional to 149,365,940,642.20, 206,125,619,115.10 and 80,777,353,756 is: 111,473,084,036.74
Step by Step Solution
- Step 1: Write the proportion equation
149,365,940,642.20 : 206,125,619,115.10 = 80,777,353,756 : x - Step 2: Convert to fraction form
149,365,940,642.20/206,125,619,115.10 = 80,777,353,756/x - Step 3: Cross multiply
149,365,940,642.20x = 206,125,619,115.10 × 80,777,353,756 - Step 4: Simplify right side
149,365,940,642.20x = 16,650,282,053,434,949,500,928 - Step 5: Solve for x
x = 16,650,282,053,434,949,500,928/149,365,940,642.20 - Step 6: Final answer
x = 111,473,084,036.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.