Finding the Fourth Proportional to 138,442,007.68, 207,647,148.48 and 36,215,912.32
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Solution
The fourth proportional to 138,442,007.68, 207,647,148.48 and 36,215,912.32 is: 54,319,718.77
Step by Step Solution
- Step 1: Write the proportion equation
138,442,007.68 : 207,647,148.48 = 36,215,912.32 : x - Step 2: Convert to fraction form
138,442,007.68/207,647,148.48 = 36,215,912.32/x - Step 3: Cross multiply
138,442,007.68x = 207,647,148.48 × 36,215,912.32 - Step 4: Simplify right side
138,442,007.68x = 7,520,130,922,849,701 - Step 5: Solve for x
x = 7,520,130,922,849,701/138,442,007.68 - Step 6: Final answer
x = 54,319,718.77
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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.