Finding the Fourth Proportional to 13,474,781.91, 18,595,571.91 and 8,247,686.07
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Solution
The fourth proportional to 13,474,781.91, 18,595,571.91 and 8,247,686.07 is: 11,382,035.01
Step by Step Solution
- Step 1: Write the proportion equation
13,474,781.91 : 18,595,571.91 = 8,247,686.07 : x - Step 2: Convert to fraction form
13,474,781.91/18,595,571.91 = 8,247,686.07/x - Step 3: Cross multiply
13,474,781.91x = 18,595,571.91 × 8,247,686.07 - Step 4: Simplify right side
13,474,781.91x = 153,370,439,405,790.31 - Step 5: Solve for x
x = 153,370,439,405,790.31/13,474,781.91 - Step 6: Final answer
x = 11,382,035.01
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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.