Finding the Fourth Proportional to 89,751,702.60, 134,627,553.90 and 74,446,201.80
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Solution
The fourth proportional to 89,751,702.60, 134,627,553.90 and 74,446,201.80 is: 111,669,302.70
Step by Step Solution
- Step 1: Write the proportion equation
89,751,702.60 : 134,627,553.90 = 74,446,201.80 : x - Step 2: Convert to fraction form
89,751,702.60/134,627,553.90 = 74,446,201.80/x - Step 3: Cross multiply
89,751,702.60x = 134,627,553.90 × 74,446,201.80 - Step 4: Simplify right side
89,751,702.60x = 10,022,510,045,479,778 - Step 5: Solve for x
x = 10,022,510,045,479,778/89,751,702.60 - Step 6: Final answer
x = 111,669,302.70
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1.5x scale
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.