Finding the Fourth Proportional to 178,143,979.80, 267,215,969.70 and 110,119,531.80
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Solution
The fourth proportional to 178,143,979.80, 267,215,969.70 and 110,119,531.80 is: 165,179,297.70
Step by Step Solution
- Step 1: Write the proportion equation
178,143,979.80 : 267,215,969.70 = 110,119,531.80 : x - Step 2: Convert to fraction form
178,143,979.80/267,215,969.70 = 110,119,531.80/x - Step 3: Cross multiply
178,143,979.80x = 267,215,969.70 × 110,119,531.80 - Step 4: Simplify right side
178,143,979.80x = 29,425,697,472,846,984 - Step 5: Solve for x
x = 29,425,697,472,846,984/178,143,979.80 - Step 6: Final answer
x = 165,179,297.70
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1.5x scale
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.