Finding the Fourth Proportional to 74,887,620.70, 112,331,431.05 and 66,384,564.70
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Solution
The fourth proportional to 74,887,620.70, 112,331,431.05 and 66,384,564.70 is: 99,576,847.05
Step by Step Solution
- Step 1: Write the proportion equation
74,887,620.70 : 112,331,431.05 = 66,384,564.70 : x - Step 2: Convert to fraction form
74,887,620.70/112,331,431.05 = 66,384,564.70/x - Step 3: Cross multiply
74,887,620.70x = 112,331,431.05 × 66,384,564.70 - Step 4: Simplify right side
74,887,620.70x = 7,457,073,152,382,314 - Step 5: Solve for x
x = 7,457,073,152,382,314/74,887,620.70 - Step 6: Final answer
x = 99,576,847.05
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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.