Finding the Fourth Proportional to 299,858,878.80, 449,368,414.20 and 238,552,894.80
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Solution
The fourth proportional to 299,858,878.80, 449,368,414.20 and 238,552,894.80 is: 357,495,287.34
Step by Step Solution
- Step 1: Write the proportion equation
299,858,878.80 : 449,368,414.20 = 238,552,894.80 : x - Step 2: Convert to fraction form
299,858,878.80/449,368,414.20 = 238,552,894.80/x - Step 3: Cross multiply
299,858,878.80x = 449,368,414.20 × 238,552,894.80 - Step 4: Simplify right side
299,858,878.80x = 107,198,136,039,095,424 - Step 5: Solve for x
x = 107,198,136,039,095,424/299,858,878.80 - Step 6: Final answer
x = 357,495,287.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.