Finding the Fourth Proportional to 256,531,294.40, 354,010,537.97 and 143,499,321.09
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Solution
The fourth proportional to 256,531,294.40, 354,010,537.97 and 143,499,321.09 is: 198,027,581.69
Step by Step Solution
- Step 1: Write the proportion equation
256,531,294.40 : 354,010,537.97 = 143,499,321.09 : x - Step 2: Convert to fraction form
256,531,294.40/354,010,537.97 = 143,499,321.09/x - Step 3: Cross multiply
256,531,294.40x = 354,010,537.97 × 143,499,321.09 - Step 4: Simplify right side
256,531,294.40x = 50,800,271,856,683,168 - Step 5: Solve for x
x = 50,800,271,856,683,168/256,531,294.40 - Step 6: Final answer
x = 198,027,581.69
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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.