Finding the Fourth Proportional to 393,171,863.22, 589,412,327.36 and 160,198,480.83
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Solution
The fourth proportional to 393,171,863.22, 589,412,327.36 and 160,198,480.83 is: 240,156,959.99
Step by Step Solution
- Step 1: Write the proportion equation
393,171,863.22 : 589,412,327.36 = 160,198,480.83 : x - Step 2: Convert to fraction form
393,171,863.22/589,412,327.36 = 160,198,480.83/x - Step 3: Cross multiply
393,171,863.22x = 589,412,327.36 × 160,198,480.83 - Step 4: Simplify right side
393,171,863.22x = 94,422,959,424,745,664 - Step 5: Solve for x
x = 94,422,959,424,745,664/393,171,863.22 - Step 6: Final answer
x = 240,156,959.99
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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.