Finding the Fourth Proportional to 128,951,810.80, 193,427,716.20 and 113,835,266.80
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Solution
The fourth proportional to 128,951,810.80, 193,427,716.20 and 113,835,266.80 is: 170,752,900.20
Step by Step Solution
- Step 1: Write the proportion equation
128,951,810.80 : 193,427,716.20 = 113,835,266.80 : x - Step 2: Convert to fraction form
128,951,810.80/193,427,716.20 = 113,835,266.80/x - Step 3: Cross multiply
128,951,810.80x = 193,427,716.20 × 113,835,266.80 - Step 4: Simplify right side
128,951,810.80x = 22,018,895,680,141,680 - Step 5: Solve for x
x = 22,018,895,680,141,680/128,951,810.80 - Step 6: Final answer
x = 170,752,900.20
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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.