Finding the Fourth Proportional to 21,651,609.14, 29,878,971.63 and 11,728,302.44
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Solution
The fourth proportional to 21,651,609.14, 29,878,971.63 and 11,728,302.44 is: 16,184,922.49
Step by Step Solution
- Step 1: Write the proportion equation
21,651,609.14 : 29,878,971.63 = 11,728,302.44 : x - Step 2: Convert to fraction form
21,651,609.14/29,878,971.63 = 11,728,302.44/x - Step 3: Cross multiply
21,651,609.14x = 29,878,971.63 × 11,728,302.44 - Step 4: Simplify right side
21,651,609.14x = 350,429,615,723,424.94 - Step 5: Solve for x
x = 350,429,615,723,424.94/21,651,609.14 - Step 6: Final answer
x = 16,184,922.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.