Finding the Fourth Proportional to 18,191,312.10, 27,287,405.55 and 5,412,233.70
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Solution
The fourth proportional to 18,191,312.10, 27,287,405.55 and 5,412,233.70 is: 8,118,480.68
Step by Step Solution
- Step 1: Write the proportion equation
18,191,312.10 : 27,287,405.55 = 5,412,233.70 : x - Step 2: Convert to fraction form
18,191,312.10/27,287,405.55 = 5,412,233.70/x - Step 3: Cross multiply
18,191,312.10x = 27,287,405.55 × 5,412,233.70 - Step 4: Simplify right side
18,191,312.10x = 147,685,815,903,277.03 - Step 5: Solve for x
x = 147,685,815,903,277.03/18,191,312.10 - Step 6: Final answer
x = 8,118,480.68
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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.