Finding the Fourth Proportional to 262,942,457.80, 394,413,686.70 and 160,905,785.80
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Solution
The fourth proportional to 262,942,457.80, 394,413,686.70 and 160,905,785.80 is: 241,358,678.70
Step by Step Solution
- Step 1: Write the proportion equation
262,942,457.80 : 394,413,686.70 = 160,905,785.80 : x - Step 2: Convert to fraction form
262,942,457.80/394,413,686.70 = 160,905,785.80/x - Step 3: Cross multiply
262,942,457.80x = 394,413,686.70 × 160,905,785.80 - Step 4: Simplify right side
262,942,457.80x = 63,463,444,188,738,512 - Step 5: Solve for x
x = 63,463,444,188,738,512/262,942,457.80 - Step 6: Final answer
x = 241,358,678.70
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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.