Finding the Fourth Proportional to 11,370,128.72, 15,690,982.92 and 6,213,707.60
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Solution
The fourth proportional to 11,370,128.72, 15,690,982.92 and 6,213,707.60 is: 8,575,028.68
Step by Step Solution
- Step 1: Write the proportion equation
11,370,128.72 : 15,690,982.92 = 6,213,707.60 : x - Step 2: Convert to fraction form
11,370,128.72/15,690,982.92 = 6,213,707.60/x - Step 3: Cross multiply
11,370,128.72x = 15,690,982.92 × 6,213,707.60 - Step 4: Simplify right side
11,370,128.72x = 97,499,179,821,474.19 - Step 5: Solve for x
x = 97,499,179,821,474.19/11,370,128.72 - Step 6: Final answer
x = 8,575,028.68
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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.