Finding the Fourth Proportional to 7,196,451.05, 9,930,832.79 and 3,933,239.28
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Solution
The fourth proportional to 7,196,451.05, 9,930,832.79 and 3,933,239.28 is: 5,427,722.82
Step by Step Solution
- Step 1: Write the proportion equation
7,196,451.05 : 9,930,832.79 = 3,933,239.28 : x - Step 2: Convert to fraction form
7,196,451.05/9,930,832.79 = 3,933,239.28/x - Step 3: Cross multiply
7,196,451.05x = 9,930,832.79 × 3,933,239.28 - Step 4: Simplify right side
7,196,451.05x = 39,060,341,593,073.80 - Step 5: Solve for x
x = 39,060,341,593,073.80/7,196,451.05 - Step 6: Final answer
x = 5,427,722.82
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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.