Finding the Fourth Proportional to 21,090,762.26, 31,629,666.66 and 7,440,716.44
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Solution
The fourth proportional to 21,090,762.26, 31,629,666.66 and 7,440,716.44 is: 11,158,789.70
Step by Step Solution
- Step 1: Write the proportion equation
21,090,762.26 : 31,629,666.66 = 7,440,716.44 : x - Step 2: Convert to fraction form
21,090,762.26/31,629,666.66 = 7,440,716.44/x - Step 3: Cross multiply
21,090,762.26x = 31,629,666.66 × 7,440,716.44 - Step 4: Simplify right side
21,090,762.26x = 235,347,380,708,781.91 - Step 5: Solve for x
x = 235,347,380,708,781.91/21,090,762.26 - Step 6: Final answer
x = 11,158,789.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.