Finding the Fourth Proportional to 171,073,642.40, 256,106,578.80 and 161,107,920.80
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Solution
The fourth proportional to 171,073,642.40, 256,106,578.80 and 161,107,920.80 is: 241,187,349.70
Step by Step Solution
- Step 1: Write the proportion equation
171,073,642.40 : 256,106,578.80 = 161,107,920.80 : x - Step 2: Convert to fraction form
171,073,642.40/256,106,578.80 = 161,107,920.80/x - Step 3: Cross multiply
171,073,642.40x = 256,106,578.80 × 161,107,920.80 - Step 4: Simplify right side
171,073,642.40x = 41,260,798,413,669,368 - Step 5: Solve for x
x = 41,260,798,413,669,368/171,073,642.40 - Step 6: Final answer
x = 241,187,349.70
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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.