Finding the Fourth Proportional to 147,495,037.10, 203,543,120.44 and 81,415,518.12
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Solution
The fourth proportional to 147,495,037.10, 203,543,120.44 and 81,415,518.12 is: 112,353,398.03
Step by Step Solution
- Step 1: Write the proportion equation
147,495,037.10 : 203,543,120.44 = 81,415,518.12 : x - Step 2: Convert to fraction form
147,495,037.10/203,543,120.44 = 81,415,518.12/x - Step 3: Cross multiply
147,495,037.10x = 203,543,120.44 × 81,415,518.12 - Step 4: Simplify right side
147,495,037.10x = 16,571,568,610,384,164 - Step 5: Solve for x
x = 16,571,568,610,384,164/147,495,037.10 - Step 6: Final answer
x = 112,353,398.03
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1.5x scale
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.