Finding the Fourth Proportional to 13,558,571.04, 18,711,193.44 and 7,977,207.12
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Solution
The fourth proportional to 13,558,571.04, 18,711,193.44 and 7,977,207.12 is: 11,008,760.81
Step by Step Solution
- Step 1: Write the proportion equation
13,558,571.04 : 18,711,193.44 = 7,977,207.12 : x - Step 2: Convert to fraction form
13,558,571.04/18,711,193.44 = 7,977,207.12/x - Step 3: Cross multiply
13,558,571.04x = 18,711,193.44 × 7,977,207.12 - Step 4: Simplify right side
13,558,571.04x = 149,263,065,533,265.31 - Step 5: Solve for x
x = 149,263,065,533,265.31/13,558,571.04 - Step 6: Final answer
x = 11,008,760.81
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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.