Finding the Fourth Proportional to 8,217,481.68, 12,319,541.64 and 3,428,737.92
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Solution
The fourth proportional to 8,217,481.68, 12,319,541.64 and 3,428,737.92 is: 5,140,319.29
Step by Step Solution
- Step 1: Write the proportion equation
8,217,481.68 : 12,319,541.64 = 3,428,737.92 : x - Step 2: Convert to fraction form
8,217,481.68/12,319,541.64 = 3,428,737.92/x - Step 3: Cross multiply
8,217,481.68x = 12,319,541.64 × 3,428,737.92 - Step 4: Simplify right side
8,217,481.68x = 42,240,479,578,086.99 - Step 5: Solve for x
x = 42,240,479,578,086.99/8,217,481.68 - Step 6: Final answer
x = 5,140,319.29
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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.