Finding the Fourth Proportional to 131,471,232.90, 197,206,849.35 and 80,452,896.90
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Solution
The fourth proportional to 131,471,232.90, 197,206,849.35 and 80,452,896.90 is: 120,679,345.35
Step by Step Solution
- Step 1: Write the proportion equation
131,471,232.90 : 197,206,849.35 = 80,452,896.90 : x - Step 2: Convert to fraction form
131,471,232.90/197,206,849.35 = 80,452,896.90/x - Step 3: Cross multiply
131,471,232.90x = 197,206,849.35 × 80,452,896.90 - Step 4: Simplify right side
131,471,232.90x = 15,865,862,318,729,382 - Step 5: Solve for x
x = 15,865,862,318,729,382/131,471,232.90 - Step 6: Final answer
x = 120,679,345.35
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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.