Finding the Fourth Proportional to 18,381,907.40, 27,572,861.10 and 14,574,777.80
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Solution
The fourth proportional to 18,381,907.40, 27,572,861.10 and 14,574,777.80 is: 21,862,166.70
Step by Step Solution
- Step 1: Write the proportion equation
18,381,907.40 : 27,572,861.10 = 14,574,777.80 : x - Step 2: Convert to fraction form
18,381,907.40/27,572,861.10 = 14,574,777.80/x - Step 3: Cross multiply
18,381,907.40x = 27,572,861.10 × 14,574,777.80 - Step 4: Simplify right side
18,381,907.40x = 401,868,323,842,763.62 - Step 5: Solve for x
x = 401,868,323,842,763.62/18,381,907.40 - Step 6: Final answer
x = 21,862,166.70
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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.