Finding the Fourth Proportional to 308,645,145.12, 464,815,325.55 and 281,095,243.68
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Solution
The fourth proportional to 308,645,145.12, 464,815,325.55 and 281,095,243.68 is: 423,325,554.50
Step by Step Solution
- Step 1: Write the proportion equation
308,645,145.12 : 464,815,325.55 = 281,095,243.68 : x - Step 2: Convert to fraction form
308,645,145.12/464,815,325.55 = 281,095,243.68/x - Step 3: Cross multiply
308,645,145.12x = 464,815,325.55 × 281,095,243.68 - Step 4: Simplify right side
308,645,145.12x = 130,657,377,201,675,792 - Step 5: Solve for x
x = 130,657,377,201,675,792/308,645,145.12 - Step 6: Final answer
x = 423,325,554.50
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.