Finding the Fourth Proportional to 201,471,854.80, 302,207,782.20 and 185,347,541.20
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Solution
The fourth proportional to 201,471,854.80, 302,207,782.20 and 185,347,541.20 is: 278,021,311.80
Step by Step Solution
- Step 1: Write the proportion equation
201,471,854.80 : 302,207,782.20 = 185,347,541.20 : x - Step 2: Convert to fraction form
201,471,854.80/302,207,782.20 = 185,347,541.20/x - Step 3: Cross multiply
201,471,854.80x = 302,207,782.20 × 185,347,541.20 - Step 4: Simplify right side
201,471,854.80x = 56,013,469,362,275,120 - Step 5: Solve for x
x = 56,013,469,362,275,120/201,471,854.80 - Step 6: Final answer
x = 278,021,311.80
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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.