Finding the Fourth Proportional to 16,131,861.11, 22,261,686.81 and 8,789,755.03
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Solution
The fourth proportional to 16,131,861.11, 22,261,686.81 and 8,789,755.03 is: 12,129,708.55
Step by Step Solution
- Step 1: Write the proportion equation
16,131,861.11 : 22,261,686.81 = 8,789,755.03 : x - Step 2: Convert to fraction form
16,131,861.11/22,261,686.81 = 8,789,755.03/x - Step 3: Cross multiply
16,131,861.11x = 22,261,686.81 × 8,789,755.03 - Step 4: Simplify right side
16,131,861.11x = 195,674,773,614,482.12 - Step 5: Solve for x
x = 195,674,773,614,482.12/16,131,861.11 - Step 6: Final answer
x = 12,129,708.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.