Finding the Fourth Proportional to 10,121,277.56, 13,952,835.80 and 7,215,623.90
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Solution
The fourth proportional to 10,121,277.56, 13,952,835.80 and 7,215,623.90 is: 9,947,204.28
Step by Step Solution
- Step 1: Write the proportion equation
10,121,277.56 : 13,952,835.80 = 7,215,623.90 : x - Step 2: Convert to fraction form
10,121,277.56/13,952,835.80 = 7,215,623.90/x - Step 3: Cross multiply
10,121,277.56x = 13,952,835.80 × 7,215,623.90 - Step 4: Simplify right side
10,121,277.56x = 100,678,415,365,413.31 - Step 5: Solve for x
x = 100,678,415,365,413.31/10,121,277.56 - Step 6: Final answer
x = 9,947,204.28
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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.