Finding the Fourth Proportional to 1,072,930,094.55, 1,609,471,755.74 and 285,979,625.18
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Solution
The fourth proportional to 1,072,930,094.55, 1,609,471,755.74 and 285,979,625.18 is: 428,989,858.50
Step by Step Solution
- Step 1: Write the proportion equation
1,072,930,094.55 : 1,609,471,755.74 = 285,979,625.18 : x - Step 2: Convert to fraction form
1,072,930,094.55/1,609,471,755.74 = 285,979,625.18/x - Step 3: Cross multiply
1,072,930,094.55x = 1,609,471,755.74 × 285,979,625.18 - Step 4: Simplify right side
1,072,930,094.55x = 460,276,129,446,317,696 - Step 5: Solve for x
x = 460,276,129,446,317,696/1,072,930,094.55 - Step 6: Final answer
x = 428,989,858.50
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Double scale
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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.