Finding the Fourth Proportional to 19,666,447.35, 27,141,681.41 and 11,409,035.19
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Solution
The fourth proportional to 19,666,447.35, 27,141,681.41 and 11,409,035.19 is: 15,745,619.57
Step by Step Solution
- Step 1: Write the proportion equation
19,666,447.35 : 27,141,681.41 = 11,409,035.19 : x - Step 2: Convert to fraction form
19,666,447.35/27,141,681.41 = 11,409,035.19/x - Step 3: Cross multiply
19,666,447.35x = 27,141,681.41 × 11,409,035.19 - Step 4: Simplify right side
19,666,447.35x = 309,660,398,265,413.62 - Step 5: Solve for x
x = 309,660,398,265,413.62/19,666,447.35 - Step 6: Final answer
x = 15,745,619.57
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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.