Finding the Fourth Proportional to 21,342,762.93, 31,994,527.68 and 7,692,568.68
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Solution
The fourth proportional to 21,342,762.93, 31,994,527.68 and 7,692,568.68 is: 11,531,782.57
Step by Step Solution
- Step 1: Write the proportion equation
21,342,762.93 : 31,994,527.68 = 7,692,568.68 : x - Step 2: Convert to fraction form
21,342,762.93/31,994,527.68 = 7,692,568.68/x - Step 3: Cross multiply
21,342,762.93x = 31,994,527.68 × 7,692,568.68 - Step 4: Simplify right side
21,342,762.93x = 246,120,101,562,561.06 - Step 5: Solve for x
x = 246,120,101,562,561.06/21,342,762.93 - Step 6: Final answer
x = 11,531,782.57
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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.