Finding the Fourth Proportional to 11,346,767.91, 15,658,229.75 and 6,190,128.09
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Solution
The fourth proportional to 11,346,767.91, 15,658,229.75 and 6,190,128.09 is: 8,542,207.66
Step by Step Solution
- Step 1: Write the proportion equation
11,346,767.91 : 15,658,229.75 = 6,190,128.09 : x - Step 2: Convert to fraction form
11,346,767.91/15,658,229.75 = 6,190,128.09/x - Step 3: Cross multiply
11,346,767.91x = 15,658,229.75 × 6,190,128.09 - Step 4: Simplify right side
11,346,767.91x = 96,926,447,784,198.03 - Step 5: Solve for x
x = 96,926,447,784,198.03/11,346,767.91 - Step 6: Final answer
x = 8,542,207.66
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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.