Finding the Fourth Proportional to 178,726,821.40, 268,090,232.10 and 63,715,115.80
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Solution
The fourth proportional to 178,726,821.40, 268,090,232.10 and 63,715,115.80 is: 95,572,673.70
Step by Step Solution
- Step 1: Write the proportion equation
178,726,821.40 : 268,090,232.10 = 63,715,115.80 : x - Step 2: Convert to fraction form
178,726,821.40/268,090,232.10 = 63,715,115.80/x - Step 3: Cross multiply
178,726,821.40x = 268,090,232.10 × 63,715,115.80 - Step 4: Simplify right side
178,726,821.40x = 17,081,400,183,100,376 - Step 5: Solve for x
x = 17,081,400,183,100,376/178,726,821.40 - Step 6: Final answer
x = 95,572,673.70
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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.