Finding the Fourth Proportional to 14,471,942.36, 19,971,319.74 and 7,945,994.50
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Solution
The fourth proportional to 14,471,942.36, 19,971,319.74 and 7,945,994.50 is: 10,965,493.98
Step by Step Solution
- Step 1: Write the proportion equation
14,471,942.36 : 19,971,319.74 = 7,945,994.50 : x - Step 2: Convert to fraction form
14,471,942.36/19,971,319.74 = 7,945,994.50/x - Step 3: Cross multiply
14,471,942.36x = 19,971,319.74 × 7,945,994.50 - Step 4: Simplify right side
14,471,942.36x = 158,691,996,811,781.41 - Step 5: Solve for x
x = 158,691,996,811,781.41/14,471,942.36 - Step 6: Final answer
x = 10,965,493.98
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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.