Finding the Fourth Proportional to 14,986,596.99, 20,681,503.34 and 8,111,078.98
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Solution
The fourth proportional to 14,986,596.99, 20,681,503.34 and 8,111,078.98 is: 11,193,288.72
Step by Step Solution
- Step 1: Write the proportion equation
14,986,596.99 : 20,681,503.34 = 8,111,078.98 : x - Step 2: Convert to fraction form
14,986,596.99/20,681,503.34 = 8,111,078.98/x - Step 3: Cross multiply
14,986,596.99x = 20,681,503.34 × 8,111,078.98 - Step 4: Simplify right side
14,986,596.99x = 167,749,307,015,873.81 - Step 5: Solve for x
x = 167,749,307,015,873.81/14,986,596.99 - Step 6: Final answer
x = 11,193,288.72
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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.