Finding the Fourth Proportional to 14,637,586.21, 20,199,987.63 and 8,111,324.68
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Solution
The fourth proportional to 14,637,586.21, 20,199,987.63 and 8,111,324.68 is: 11,193,693.81
Step by Step Solution
- Step 1: Write the proportion equation
14,637,586.21 : 20,199,987.63 = 8,111,324.68 : x - Step 2: Convert to fraction form
14,637,586.21/20,199,987.63 = 8,111,324.68/x - Step 3: Cross multiply
14,637,586.21x = 20,199,987.63 × 8,111,324.68 - Step 4: Simplify right side
14,637,586.21x = 163,848,658,148,413.75 - Step 5: Solve for x
x = 163,848,658,148,413.75/14,637,586.21 - Step 6: Final answer
x = 11,193,693.81
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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.