Finding the Fourth Proportional to 354,519,491.92, 489,318,528.18 and 207,889,015.12
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Solution
The fourth proportional to 354,519,491.92, 489,318,528.18 and 207,889,015.12 is: 286,934,708.03
Step by Step Solution
- Step 1: Write the proportion equation
354,519,491.92 : 489,318,528.18 = 207,889,015.12 : x - Step 2: Convert to fraction form
354,519,491.92/489,318,528.18 = 207,889,015.12/x - Step 3: Cross multiply
354,519,491.92x = 489,318,528.18 × 207,889,015.12 - Step 4: Simplify right side
354,519,491.92x = 101,723,946,902,864,448 - Step 5: Solve for x
x = 101,723,946,902,864,448/354,519,491.92 - Step 6: Final answer
x = 286,934,708.03
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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.