Finding the Fourth Proportional to 285,243,085.35, 427,740,033.99 and 100,949,310.75
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Solution
The fourth proportional to 285,243,085.35, 427,740,033.99 and 100,949,310.75 is: 151,379,871.52
Step by Step Solution
- Step 1: Write the proportion equation
285,243,085.35 : 427,740,033.99 = 100,949,310.75 : x - Step 2: Convert to fraction form
285,243,085.35/427,740,033.99 = 100,949,310.75/x - Step 3: Cross multiply
285,243,085.35x = 427,740,033.99 × 100,949,310.75 - Step 4: Simplify right side
285,243,085.35x = 43,180,061,611,472,072 - Step 5: Solve for x
x = 43,180,061,611,472,072/285,243,085.35 - Step 6: Final answer
x = 151,379,871.52
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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.