Finding the Fourth Proportional to 1,121,639,195.46, 1,680,954,888.96 and 872,944,754.94
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Solution
The fourth proportional to 1,121,639,195.46, 1,680,954,888.96 and 872,944,754.94 is: 1,308,246,679.99
Step by Step Solution
- Step 1: Write the proportion equation
1,121,639,195.46 : 1,680,954,888.96 = 872,944,754.94 : x - Step 2: Convert to fraction form
1,121,639,195.46/1,680,954,888.96 = 872,944,754.94/x - Step 3: Cross multiply
1,121,639,195.46x = 1,680,954,888.96 × 872,944,754.94 - Step 4: Simplify right side
1,121,639,195.46x = 1,467,380,753,608,382,208 - Step 5: Solve for x
x = 1,467,380,753,608,382,208/1,121,639,195.46 - Step 6: Final answer
x = 1,308,246,679.99
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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.