Finding the Fourth Proportional to 1,176,188,049.80, 1,764,282,074.70 and 485,865,873.80
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Solution
The fourth proportional to 1,176,188,049.80, 1,764,282,074.70 and 485,865,873.80 is: 728,798,810.70
Step by Step Solution
- Step 1: Write the proportion equation
1,176,188,049.80 : 1,764,282,074.70 = 485,865,873.80 : x - Step 2: Convert to fraction form
1,176,188,049.80/1,764,282,074.70 = 485,865,873.80/x - Step 3: Cross multiply
1,176,188,049.80x = 1,764,282,074.70 × 485,865,873.80 - Step 4: Simplify right side
1,176,188,049.80x = 857,204,451,853,792,384 - Step 5: Solve for x
x = 857,204,451,853,792,384/1,176,188,049.80 - Step 6: Final answer
x = 728,798,810.70
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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.