Finding the Fourth Proportional to 394,752,006.80, 592,128,010.20 and 256,202,349.20
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Solution
The fourth proportional to 394,752,006.80, 592,128,010.20 and 256,202,349.20 is: 384,303,523.80
Step by Step Solution
- Step 1: Write the proportion equation
394,752,006.80 : 592,128,010.20 = 256,202,349.20 : x - Step 2: Convert to fraction form
394,752,006.80/592,128,010.20 = 256,202,349.20/x - Step 3: Cross multiply
394,752,006.80x = 592,128,010.20 × 256,202,349.20 - Step 4: Simplify right side
394,752,006.80x = 151,704,587,240,361,568 - Step 5: Solve for x
x = 151,704,587,240,361,568/394,752,006.80 - Step 6: Final answer
x = 384,303,523.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.