Finding the Fourth Proportional to 20,113,971.99, 27,760,206.24 and 11,294,413.35
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Solution
The fourth proportional to 20,113,971.99, 27,760,206.24 and 11,294,413.35 is: 15,587,932.81
Step by Step Solution
- Step 1: Write the proportion equation
20,113,971.99 : 27,760,206.24 = 11,294,413.35 : x - Step 2: Convert to fraction form
20,113,971.99/27,760,206.24 = 11,294,413.35/x - Step 3: Cross multiply
20,113,971.99x = 27,760,206.24 × 11,294,413.35 - Step 4: Simplify right side
20,113,971.99x = 313,535,243,955,809.25 - Step 5: Solve for x
x = 313,535,243,955,809.25/20,113,971.99 - Step 6: Final answer
x = 15,587,932.81
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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.