Finding the Fourth Proportional to 18,457,243.23, 27,691,779.35 and 12,923,543.12
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Solution
The fourth proportional to 18,457,243.23, 27,691,779.35 and 12,923,543.12 is: 19,389,455.94
Step by Step Solution
- Step 1: Write the proportion equation
18,457,243.23 : 27,691,779.35 = 12,923,543.12 : x - Step 2: Convert to fraction form
18,457,243.23/27,691,779.35 = 12,923,543.12/x - Step 3: Cross multiply
18,457,243.23x = 27,691,779.35 × 12,923,543.12 - Step 4: Simplify right side
18,457,243.23x = 357,875,904,296,173.94 - Step 5: Solve for x
x = 357,875,904,296,173.94/18,457,243.23 - Step 6: Final answer
x = 19,389,455.94
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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.