Finding the Fourth Proportional to 13,420,485.36, 20,116,247.34 and 6,589,113.84
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Solution
The fourth proportional to 13,420,485.36, 20,116,247.34 and 6,589,113.84 is: 9,876,561.11
Step by Step Solution
- Step 1: Write the proportion equation
13,420,485.36 : 20,116,247.34 = 6,589,113.84 : x - Step 2: Convert to fraction form
13,420,485.36/20,116,247.34 = 6,589,113.84/x - Step 3: Cross multiply
13,420,485.36x = 20,116,247.34 × 6,589,113.84 - Step 4: Simplify right side
13,420,485.36x = 132,548,243,756,857.19 - Step 5: Solve for x
x = 132,548,243,756,857.19/13,420,485.36 - Step 6: Final answer
x = 9,876,561.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.