Finding the Fourth Proportional to 326,386,706.18, 450,409,429.53 and 177,706,121.92
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Solution
The fourth proportional to 326,386,706.18, 450,409,429.53 and 177,706,121.92 is: 245,232,147.89
Step by Step Solution
- Step 1: Write the proportion equation
326,386,706.18 : 450,409,429.53 = 177,706,121.92 : x - Step 2: Convert to fraction form
326,386,706.18/450,409,429.53 = 177,706,121.92/x - Step 3: Cross multiply
326,386,706.18x = 450,409,429.53 × 177,706,121.92 - Step 4: Simplify right side
326,386,706.18x = 80,040,512,996,849,792 - Step 5: Solve for x
x = 80,040,512,996,849,792/326,386,706.18 - Step 6: Final answer
x = 245,232,147.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.