Finding the Fourth Proportional to 18,385,446.16, 27,573,729.63 and 8,144,643.70
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Solution
The fourth proportional to 18,385,446.16, 27,573,729.63 and 8,144,643.70 is: 12,214,998.83
Step by Step Solution
- Step 1: Write the proportion equation
18,385,446.16 : 27,573,729.63 = 8,144,643.70 : x - Step 2: Convert to fraction form
18,385,446.16/27,573,729.63 = 8,144,643.70/x - Step 3: Cross multiply
18,385,446.16x = 27,573,729.63 × 8,144,643.70 - Step 4: Simplify right side
18,385,446.16x = 224,578,203,316,482.81 - Step 5: Solve for x
x = 224,578,203,316,482.81/18,385,446.16 - Step 6: Final answer
x = 12,214,998.83
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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.