Finding the Fourth Proportional to 7,461,238.40, 11,191,857.60 and 6,873,372.80
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Solution
The fourth proportional to 7,461,238.40, 11,191,857.60 and 6,873,372.80 is: 10,310,059.20
Step by Step Solution
- Step 1: Write the proportion equation
7,461,238.40 : 11,191,857.60 = 6,873,372.80 : x - Step 2: Convert to fraction form
7,461,238.40/11,191,857.60 = 6,873,372.80/x - Step 3: Cross multiply
7,461,238.40x = 11,191,857.60 × 6,873,372.80 - Step 4: Simplify right side
7,461,238.40x = 76,925,809,609,313.28 - Step 5: Solve for x
x = 76,925,809,609,313.28/7,461,238.40 - Step 6: Final answer
x = 10,310,059.20
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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.