Finding the Fourth Proportional to 66,427,230.90, 99,640,846.35 and 40,785,093.30
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Solution
The fourth proportional to 66,427,230.90, 99,640,846.35 and 40,785,093.30 is: 61,177,639.95
Step by Step Solution
- Step 1: Write the proportion equation
66,427,230.90 : 99,640,846.35 = 40,785,093.30 : x - Step 2: Convert to fraction form
66,427,230.90/99,640,846.35 = 40,785,093.30/x - Step 3: Cross multiply
66,427,230.90x = 99,640,846.35 × 40,785,093.30 - Step 4: Simplify right side
66,427,230.90x = 4,063,861,214,875,714 - Step 5: Solve for x
x = 4,063,861,214,875,714/66,427,230.90 - Step 6: Final answer
x = 61,177,639.95
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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.